Home / 34,520.22-47,639.07-20,372.76

Finding the Fourth Proportional to 34,520.22, 47,639.07 and 20,372.76

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Solution

The fourth proportional to 34,520.22, 47,639.07 and 20,372.76 is: 28,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,520.22 : 47,639.07 = 20,372.76 : x
  2. Step 2: Convert to fraction form
    34,520.22/47,639.07 = 20,372.76/x
  3. Step 3: Cross multiply
    34,520.22x = 47,639.07 × 20,372.76
  4. Step 4: Simplify right side
    34,520.22x = 970,539,339.73
  5. Step 5: Solve for x
    x = 970,539,339.73/34,520.22
  6. Step 6: Final answer
    x = 28,115.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.