Home / 39,040.32-58,538.28-12,381.39

Finding the Fourth Proportional to 39,040.32, 58,538.28 and 12,381.39

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Solution

The fourth proportional to 39,040.32, 58,538.28 and 12,381.39 is: 18,565.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,040.32 : 58,538.28 = 12,381.39 : x
  2. Step 2: Convert to fraction form
    39,040.32/58,538.28 = 12,381.39/x
  3. Step 3: Cross multiply
    39,040.32x = 58,538.28 × 12,381.39
  4. Step 4: Simplify right side
    39,040.32x = 724,785,274.61
  5. Step 5: Solve for x
    x = 724,785,274.61/39,040.32
  6. Step 6: Final answer
    x = 18,565.04

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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.