Home / 38,299.61-57,449.79-11,649.90

Finding the Fourth Proportional to 38,299.61, 57,449.79 and 11,649.90

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Solution

The fourth proportional to 38,299.61, 57,449.79 and 11,649.90 is: 17,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,299.61 : 57,449.79 = 11,649.90 : x
  2. Step 2: Convert to fraction form
    38,299.61/57,449.79 = 11,649.90/x
  3. Step 3: Cross multiply
    38,299.61x = 57,449.79 × 11,649.90
  4. Step 4: Simplify right side
    38,299.61x = 669,284,308.52
  5. Step 5: Solve for x
    x = 669,284,308.52/38,299.61
  6. Step 6: Final answer
    x = 17,474.97

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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.