Home / 31,377.26-43,305.15-18,803.18

Finding the Fourth Proportional to 31,377.26, 43,305.15 and 18,803.18

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Solution

The fourth proportional to 31,377.26, 43,305.15 and 18,803.18 is: 25,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,377.26 : 43,305.15 = 18,803.18 : x
  2. Step 2: Convert to fraction form
    31,377.26/43,305.15 = 18,803.18/x
  3. Step 3: Cross multiply
    31,377.26x = 43,305.15 × 18,803.18
  4. Step 4: Simplify right side
    31,377.26x = 814,274,530.38
  5. Step 5: Solve for x
    x = 814,274,530.38/31,377.26
  6. Step 6: Final answer
    x = 25,951.10

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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.