Home / 20,624.28-28,461.42-11,192.91

Finding the Fourth Proportional to 20,624.28, 28,461.42 and 11,192.91

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Solution

The fourth proportional to 20,624.28, 28,461.42 and 11,192.91 is: 15,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.28 : 28,461.42 = 11,192.91 : x
  2. Step 2: Convert to fraction form
    20,624.28/28,461.42 = 11,192.91/x
  3. Step 3: Cross multiply
    20,624.28x = 28,461.42 × 11,192.91
  4. Step 4: Simplify right side
    20,624.28x = 318,566,112.53
  5. Step 5: Solve for x
    x = 318,566,112.53/20,624.28
  6. Step 6: Final answer
    x = 15,446.17

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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.