Home / 19,872.60-29,760.30-9,472.20

Finding the Fourth Proportional to 19,872.60, 29,760.30 and 9,472.20

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Solution

The fourth proportional to 19,872.60, 29,760.30 and 9,472.20 is: 14,185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.60 : 29,760.30 = 9,472.20 : x
  2. Step 2: Convert to fraction form
    19,872.60/29,760.30 = 9,472.20/x
  3. Step 3: Cross multiply
    19,872.60x = 29,760.30 × 9,472.20
  4. Step 4: Simplify right side
    19,872.60x = 281,895,513.66
  5. Step 5: Solve for x
    x = 281,895,513.66/19,872.60
  6. Step 6: Final answer
    x = 14,185.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.