Home / 47,445.20-71,167.79-12,384.89

Finding the Fourth Proportional to 47,445.20, 71,167.79 and 12,384.89

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Solution

The fourth proportional to 47,445.20, 71,167.79 and 12,384.89 is: 18,577.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,445.20 : 71,167.79 = 12,384.89 : x
  2. Step 2: Convert to fraction form
    47,445.20/71,167.79 = 12,384.89/x
  3. Step 3: Cross multiply
    47,445.20x = 71,167.79 × 12,384.89
  4. Step 4: Simplify right side
    47,445.20x = 881,404,925.82
  5. Step 5: Solve for x
    x = 881,404,925.82/47,445.20
  6. Step 6: Final answer
    x = 18,577.33

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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.