Home / 31,073.27-42,906.43-25,331.65

Finding the Fourth Proportional to 31,073.27, 42,906.43 and 25,331.65

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Solution

The fourth proportional to 31,073.27, 42,906.43 and 25,331.65 is: 34,978.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,073.27 : 42,906.43 = 25,331.65 : x
  2. Step 2: Convert to fraction form
    31,073.27/42,906.43 = 25,331.65/x
  3. Step 3: Cross multiply
    31,073.27x = 42,906.43 × 25,331.65
  4. Step 4: Simplify right side
    31,073.27x = 1,086,890,667.51
  5. Step 5: Solve for x
    x = 1,086,890,667.51/31,073.27
  6. Step 6: Final answer
    x = 34,978.32

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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.