Home / 21,154.68-29,192.22-11,592.69

Finding the Fourth Proportional to 21,154.68, 29,192.22 and 11,592.69

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Solution

The fourth proportional to 21,154.68, 29,192.22 and 11,592.69 is: 15,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154.68 : 29,192.22 = 11,592.69 : x
  2. Step 2: Convert to fraction form
    21,154.68/29,192.22 = 11,592.69/x
  3. Step 3: Cross multiply
    21,154.68x = 29,192.22 × 11,592.69
  4. Step 4: Simplify right side
    21,154.68x = 338,416,356.87
  5. Step 5: Solve for x
    x = 338,416,356.87/21,154.68
  6. Step 6: Final answer
    x = 15,997.23

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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.