Home / 31,286.81-43,184.85-17,865.38

Finding the Fourth Proportional to 31,286.81, 43,184.85 and 17,865.38

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Solution

The fourth proportional to 31,286.81, 43,184.85 and 17,865.38 is: 24,659.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.81 : 43,184.85 = 17,865.38 : x
  2. Step 2: Convert to fraction form
    31,286.81/43,184.85 = 17,865.38/x
  3. Step 3: Cross multiply
    31,286.81x = 43,184.85 × 17,865.38
  4. Step 4: Simplify right side
    31,286.81x = 771,513,755.49
  5. Step 5: Solve for x
    x = 771,513,755.49/31,286.81
  6. Step 6: Final answer
    x = 24,659.39

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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.