Home / 38,279.28-57,384.32-13,649.52

Finding the Fourth Proportional to 38,279.28, 57,384.32 and 13,649.52

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Solution

The fourth proportional to 38,279.28, 57,384.32 and 13,649.52 is: 20,461.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,279.28 : 57,384.32 = 13,649.52 : x
  2. Step 2: Convert to fraction form
    38,279.28/57,384.32 = 13,649.52/x
  3. Step 3: Cross multiply
    38,279.28x = 57,384.32 × 13,649.52
  4. Step 4: Simplify right side
    38,279.28x = 783,268,423.53
  5. Step 5: Solve for x
    x = 783,268,423.53/38,279.28
  6. Step 6: Final answer
    x = 20,461.94

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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.