Home / 27,117.89-40,718.15-25,781.39

Finding the Fourth Proportional to 27,117.89, 40,718.15 and 25,781.39

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Solution

The fourth proportional to 27,117.89, 40,718.15 and 25,781.39 is: 38,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,117.89 : 40,718.15 = 25,781.39 : x
  2. Step 2: Convert to fraction form
    27,117.89/40,718.15 = 25,781.39/x
  3. Step 3: Cross multiply
    27,117.89x = 40,718.15 × 25,781.39
  4. Step 4: Simplify right side
    27,117.89x = 1,049,770,172.73
  5. Step 5: Solve for x
    x = 1,049,770,172.73/27,117.89
  6. Step 6: Final answer
    x = 38,711.36

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1.5x scale

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.