Home / 38,293.20-57,439.89-11,639.43

Finding the Fourth Proportional to 38,293.20, 57,439.89 and 11,639.43

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Solution

The fourth proportional to 38,293.20, 57,439.89 and 11,639.43 is: 17,459.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,293.20 : 57,439.89 = 11,639.43 : x
  2. Step 2: Convert to fraction form
    38,293.20/57,439.89 = 11,639.43/x
  3. Step 3: Cross multiply
    38,293.20x = 57,439.89 × 11,639.43
  4. Step 4: Simplify right side
    38,293.20x = 668,567,578.86
  5. Step 5: Solve for x
    x = 668,567,578.86/38,293.20
  6. Step 6: Final answer
    x = 17,459.17

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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.