Home / 38,720.71-53,439.78-22,805.02

Finding the Fourth Proportional to 38,720.71, 53,439.78 and 22,805.02

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Solution

The fourth proportional to 38,720.71, 53,439.78 and 22,805.02 is: 31,473.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,720.71 : 53,439.78 = 22,805.02 : x
  2. Step 2: Convert to fraction form
    38,720.71/53,439.78 = 22,805.02/x
  3. Step 3: Cross multiply
    38,720.71x = 53,439.78 × 22,805.02
  4. Step 4: Simplify right side
    38,720.71x = 1,218,695,251.70
  5. Step 5: Solve for x
    x = 1,218,695,251.70/38,720.71
  6. Step 6: Final answer
    x = 31,473.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.