Home / 21,497.28-29,666.16-12,545.16

Finding the Fourth Proportional to 21,497.28, 29,666.16 and 12,545.16

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Solution

The fourth proportional to 21,497.28, 29,666.16 and 12,545.16 is: 17,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.28 : 29,666.16 = 12,545.16 : x
  2. Step 2: Convert to fraction form
    21,497.28/29,666.16 = 12,545.16/x
  3. Step 3: Cross multiply
    21,497.28x = 29,666.16 × 12,545.16
  4. Step 4: Simplify right side
    21,497.28x = 372,166,723.79
  5. Step 5: Solve for x
    x = 372,166,723.79/21,497.28
  6. Step 6: Final answer
    x = 17,312.27

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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.