Home / 21,463.29-29,606.45-15,508.17

Finding the Fourth Proportional to 21,463.29, 29,606.45 and 15,508.17

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Solution

The fourth proportional to 21,463.29, 29,606.45 and 15,508.17 is: 21,391.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.29 : 29,606.45 = 15,508.17 : x
  2. Step 2: Convert to fraction form
    21,463.29/29,606.45 = 15,508.17/x
  3. Step 3: Cross multiply
    21,463.29x = 29,606.45 × 15,508.17
  4. Step 4: Simplify right side
    21,463.29x = 459,141,782.16
  5. Step 5: Solve for x
    x = 459,141,782.16/21,463.29
  6. Step 6: Final answer
    x = 21,391.96

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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.