Home / 21,061.92-29,070-14,363.54

Finding the Fourth Proportional to 21,061.92, 29,070 and 14,363.54

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Solution

The fourth proportional to 21,061.92, 29,070 and 14,363.54 is: 19,824.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061.92 : 29,070 = 14,363.54 : x
  2. Step 2: Convert to fraction form
    21,061.92/29,070 = 14,363.54/x
  3. Step 3: Cross multiply
    21,061.92x = 29,070 × 14,363.54
  4. Step 4: Simplify right side
    21,061.92x = 417,547,962.45
  5. Step 5: Solve for x
    x = 417,547,962.45/21,061.92
  6. Step 6: Final answer
    x = 19,824.78

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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.