Home / 27,731.53-38,269.51-17,812.81

Finding the Fourth Proportional to 27,731.53, 38,269.51 and 17,812.81

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Solution

The fourth proportional to 27,731.53, 38,269.51 and 17,812.81 is: 24,581.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,731.53 : 38,269.51 = 17,812.81 : x
  2. Step 2: Convert to fraction form
    27,731.53/38,269.51 = 17,812.81/x
  3. Step 3: Cross multiply
    27,731.53x = 38,269.51 × 17,812.81
  4. Step 4: Simplify right side
    27,731.53x = 681,687,613.93
  5. Step 5: Solve for x
    x = 681,687,613.93/27,731.53
  6. Step 6: Final answer
    x = 24,581.68

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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.