Home / 21,557.97-29,733.12-14,006.72

Finding the Fourth Proportional to 21,557.97, 29,733.12 and 14,006.72

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Solution

The fourth proportional to 21,557.97, 29,733.12 and 14,006.72 is: 19,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.97 : 29,733.12 = 14,006.72 : x
  2. Step 2: Convert to fraction form
    21,557.97/29,733.12 = 14,006.72/x
  3. Step 3: Cross multiply
    21,557.97x = 29,733.12 × 14,006.72
  4. Step 4: Simplify right side
    21,557.97x = 416,463,560.90
  5. Step 5: Solve for x
    x = 416,463,560.90/21,557.97
  6. Step 6: Final answer
    x = 19,318.31

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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.