Home / 31,508.66-43,462.71-18,753.32

Finding the Fourth Proportional to 31,508.66, 43,462.71 and 18,753.32

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Solution

The fourth proportional to 31,508.66, 43,462.71 and 18,753.32 is: 25,868.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,508.66 : 43,462.71 = 18,753.32 : x
  2. Step 2: Convert to fraction form
    31,508.66/43,462.71 = 18,753.32/x
  3. Step 3: Cross multiply
    31,508.66x = 43,462.71 × 18,753.32
  4. Step 4: Simplify right side
    31,508.66x = 815,070,217.35
  5. Step 5: Solve for x
    x = 815,070,217.35/31,508.66
  6. Step 6: Final answer
    x = 25,868.13

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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.