Home / 38,839.71-58,259.16-12,543.87

Finding the Fourth Proportional to 38,839.71, 58,259.16 and 12,543.87

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Solution

The fourth proportional to 38,839.71, 58,259.16 and 12,543.87 is: 18,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,839.71 : 58,259.16 = 12,543.87 : x
  2. Step 2: Convert to fraction form
    38,839.71/58,259.16 = 12,543.87/x
  3. Step 3: Cross multiply
    38,839.71x = 58,259.16 × 12,543.87
  4. Step 4: Simplify right side
    38,839.71x = 730,795,329.35
  5. Step 5: Solve for x
    x = 730,795,329.35/38,839.71
  6. Step 6: Final answer
    x = 18,815.67

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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.