Home / 22,577.68-31,128.32-15,491.80

Finding the Fourth Proportional to 22,577.68, 31,128.32 and 15,491.80

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Solution

The fourth proportional to 22,577.68, 31,128.32 and 15,491.80 is: 21,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,577.68 : 31,128.32 = 15,491.80 : x
  2. Step 2: Convert to fraction form
    22,577.68/31,128.32 = 15,491.80/x
  3. Step 3: Cross multiply
    22,577.68x = 31,128.32 × 15,491.80
  4. Step 4: Simplify right side
    22,577.68x = 482,233,707.78
  5. Step 5: Solve for x
    x = 482,233,707.78/22,577.68
  6. Step 6: Final answer
    x = 21,358.87

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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.