Home / 21,713.76-32,545.68-9,215.28

Finding the Fourth Proportional to 21,713.76, 32,545.68 and 9,215.28

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Solution

The fourth proportional to 21,713.76, 32,545.68 and 9,215.28 is: 13,812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,713.76 : 32,545.68 = 9,215.28 : x
  2. Step 2: Convert to fraction form
    21,713.76/32,545.68 = 9,215.28/x
  3. Step 3: Cross multiply
    21,713.76x = 32,545.68 × 9,215.28
  4. Step 4: Simplify right side
    21,713.76x = 299,917,553.99
  5. Step 5: Solve for x
    x = 299,917,553.99/21,713.76
  6. Step 6: Final answer
    x = 13,812.33

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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.