Home / 47,635.60-71,439.90-18,031.72

Finding the Fourth Proportional to 47,635.60, 71,439.90 and 18,031.72

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Solution

The fourth proportional to 47,635.60, 71,439.90 and 18,031.72 is: 27,042.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,635.60 : 71,439.90 = 18,031.72 : x
  2. Step 2: Convert to fraction form
    47,635.60/71,439.90 = 18,031.72/x
  3. Step 3: Cross multiply
    47,635.60x = 71,439.90 × 18,031.72
  4. Step 4: Simplify right side
    47,635.60x = 1,288,184,273.63
  5. Step 5: Solve for x
    x = 1,288,184,273.63/47,635.60
  6. Step 6: Final answer
    x = 27,042.47

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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.