Home / 31,513.05-43,471.35-18,757.17

Finding the Fourth Proportional to 31,513.05, 43,471.35 and 18,757.17

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Solution

The fourth proportional to 31,513.05, 43,471.35 and 18,757.17 is: 25,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,513.05 : 43,471.35 = 18,757.17 : x
  2. Step 2: Convert to fraction form
    31,513.05/43,471.35 = 18,757.17/x
  3. Step 3: Cross multiply
    31,513.05x = 43,471.35 × 18,757.17
  4. Step 4: Simplify right side
    31,513.05x = 815,399,502.08
  5. Step 5: Solve for x
    x = 815,399,502.08/31,513.05
  6. Step 6: Final answer
    x = 25,874.98

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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.