Home / 31,129.88-46,626.18-25,731.74

Finding the Fourth Proportional to 31,129.88, 46,626.18 and 25,731.74

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Solution

The fourth proportional to 31,129.88, 46,626.18 and 25,731.74 is: 38,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129.88 : 46,626.18 = 25,731.74 : x
  2. Step 2: Convert to fraction form
    31,129.88/46,626.18 = 25,731.74/x
  3. Step 3: Cross multiply
    31,129.88x = 46,626.18 × 25,731.74
  4. Step 4: Simplify right side
    31,129.88x = 1,199,772,740.95
  5. Step 5: Solve for x
    x = 1,199,772,740.95/31,129.88
  6. Step 6: Final answer
    x = 38,540.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.