Home / 21,393,004.20-32,089,506.30-20,347,909.80

Finding the Fourth Proportional to 21,393,004.20, 32,089,506.30 and 20,347,909.80

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Solution

The fourth proportional to 21,393,004.20, 32,089,506.30 and 20,347,909.80 is: 30,521,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393,004.20 : 32,089,506.30 = 20,347,909.80 : x
  2. Step 2: Convert to fraction form
    21,393,004.20/32,089,506.30 = 20,347,909.80/x
  3. Step 3: Cross multiply
    21,393,004.20x = 32,089,506.30 × 20,347,909.80
  4. Step 4: Simplify right side
    21,393,004.20x = 652,954,379,718,931.75
  5. Step 5: Solve for x
    x = 652,954,379,718,931.75/21,393,004.20
  6. Step 6: Final answer
    x = 30,521,864.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.