Home / 21,393,002.70-32,089,504.05-20,347,908.30

Finding the Fourth Proportional to 21,393,002.70, 32,089,504.05 and 20,347,908.30

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Solution

The fourth proportional to 21,393,002.70, 32,089,504.05 and 20,347,908.30 is: 30,521,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393,002.70 : 32,089,504.05 = 20,347,908.30 : x
  2. Step 2: Convert to fraction form
    21,393,002.70/32,089,504.05 = 20,347,908.30/x
  3. Step 3: Cross multiply
    21,393,002.70x = 32,089,504.05 × 20,347,908.30
  4. Step 4: Simplify right side
    21,393,002.70x = 652,954,285,801,878.62
  5. Step 5: Solve for x
    x = 652,954,285,801,878.62/21,393,002.70
  6. Step 6: Final answer
    x = 30,521,862.45

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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.