Home / 39,330.29-54,275.74-21,425.28

Finding the Fourth Proportional to 39,330.29, 54,275.74 and 21,425.28

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Solution

The fourth proportional to 39,330.29, 54,275.74 and 21,425.28 is: 29,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,330.29 : 54,275.74 = 21,425.28 : x
  2. Step 2: Convert to fraction form
    39,330.29/54,275.74 = 21,425.28/x
  3. Step 3: Cross multiply
    39,330.29x = 54,275.74 × 21,425.28
  4. Step 4: Simplify right side
    39,330.29x = 1,162,872,669.61
  5. Step 5: Solve for x
    x = 1,162,872,669.61/39,330.29
  6. Step 6: Final answer
    x = 29,566.85

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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.