Home / 31,732.95-43,790.49-18,311.66

Finding the Fourth Proportional to 31,732.95, 43,790.49 and 18,311.66

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Solution

The fourth proportional to 31,732.95, 43,790.49 and 18,311.66 is: 25,269.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,732.95 : 43,790.49 = 18,311.66 : x
  2. Step 2: Convert to fraction form
    31,732.95/43,790.49 = 18,311.66/x
  3. Step 3: Cross multiply
    31,732.95x = 43,790.49 × 18,311.66
  4. Step 4: Simplify right side
    31,732.95x = 801,876,564.11
  5. Step 5: Solve for x
    x = 801,876,564.11/31,732.95
  6. Step 6: Final answer
    x = 25,269.52

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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.