Home / 31,777.92-43,853.40-18,348.12

Finding the Fourth Proportional to 31,777.92, 43,853.40 and 18,348.12

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Solution

The fourth proportional to 31,777.92, 43,853.40 and 18,348.12 is: 25,320.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,777.92 : 43,853.40 = 18,348.12 : x
  2. Step 2: Convert to fraction form
    31,777.92/43,853.40 = 18,348.12/x
  3. Step 3: Cross multiply
    31,777.92x = 43,853.40 × 18,348.12
  4. Step 4: Simplify right side
    31,777.92x = 804,627,445.61
  5. Step 5: Solve for x
    x = 804,627,445.61/31,777.92
  6. Step 6: Final answer
    x = 25,320.33

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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.