Home / 47,445.45-71,168.17-12,385.14

Finding the Fourth Proportional to 47,445.45, 71,168.17 and 12,385.14

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Solution

The fourth proportional to 47,445.45, 71,168.17 and 12,385.14 is: 18,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,445.45 : 71,168.17 = 12,385.14 : x
  2. Step 2: Convert to fraction form
    47,445.45/71,168.17 = 12,385.14/x
  3. Step 3: Cross multiply
    47,445.45x = 71,168.17 × 12,385.14
  4. Step 4: Simplify right side
    47,445.45x = 881,427,748.99
  5. Step 5: Solve for x
    x = 881,427,748.99/47,445.45
  6. Step 6: Final answer
    x = 18,577.71

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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.