Home / 29,288.31-40,417.92-15,859.71

Finding the Fourth Proportional to 29,288.31, 40,417.92 and 15,859.71

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Solution

The fourth proportional to 29,288.31, 40,417.92 and 15,859.71 is: 21,886.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,288.31 : 40,417.92 = 15,859.71 : x
  2. Step 2: Convert to fraction form
    29,288.31/40,417.92 = 15,859.71/x
  3. Step 3: Cross multiply
    29,288.31x = 40,417.92 × 15,859.71
  4. Step 4: Simplify right side
    29,288.31x = 641,016,490.00
  5. Step 5: Solve for x
    x = 641,016,490.00/29,288.31
  6. Step 6: Final answer
    x = 21,886.43

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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.