Home / 34,220.20-51,330.30-20,165.80

Finding the Fourth Proportional to 34,220.20, 51,330.30 and 20,165.80

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Solution

The fourth proportional to 34,220.20, 51,330.30 and 20,165.80 is: 30,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,220.20 : 51,330.30 = 20,165.80 : x
  2. Step 2: Convert to fraction form
    34,220.20/51,330.30 = 20,165.80/x
  3. Step 3: Cross multiply
    34,220.20x = 51,330.30 × 20,165.80
  4. Step 4: Simplify right side
    34,220.20x = 1,035,116,563.74
  5. Step 5: Solve for x
    x = 1,035,116,563.74/34,220.20
  6. Step 6: Final answer
    x = 30,248.70

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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.