Home / 47,801.18-71,731.74-18,221.60

Finding the Fourth Proportional to 47,801.18, 71,731.74 and 18,221.60

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Solution

The fourth proportional to 47,801.18, 71,731.74 and 18,221.60 is: 27,343.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,801.18 : 71,731.74 = 18,221.60 : x
  2. Step 2: Convert to fraction form
    47,801.18/71,731.74 = 18,221.60/x
  3. Step 3: Cross multiply
    47,801.18x = 71,731.74 × 18,221.60
  4. Step 4: Simplify right side
    47,801.18x = 1,307,067,073.58
  5. Step 5: Solve for x
    x = 1,307,067,073.58/47,801.18
  6. Step 6: Final answer
    x = 27,343.82

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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.