Home / 38,627.20-57,941.88-13,663.72

Finding the Fourth Proportional to 38,627.20, 57,941.88 and 13,663.72

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Solution

The fourth proportional to 38,627.20, 57,941.88 and 13,663.72 is: 20,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,627.20 : 57,941.88 = 13,663.72 : x
  2. Step 2: Convert to fraction form
    38,627.20/57,941.88 = 13,663.72/x
  3. Step 3: Cross multiply
    38,627.20x = 57,941.88 × 13,663.72
  4. Step 4: Simplify right side
    38,627.20x = 791,701,624.59
  5. Step 5: Solve for x
    x = 791,701,624.59/38,627.20
  6. Step 6: Final answer
    x = 20,495.96

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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.