Home / 31,511.43-43,491.60-18,082.71

Finding the Fourth Proportional to 31,511.43, 43,491.60 and 18,082.71

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Solution

The fourth proportional to 31,511.43, 43,491.60 and 18,082.71 is: 24,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.43 : 43,491.60 = 18,082.71 : x
  2. Step 2: Convert to fraction form
    31,511.43/43,491.60 = 18,082.71/x
  3. Step 3: Cross multiply
    31,511.43x = 43,491.60 × 18,082.71
  4. Step 4: Simplify right side
    31,511.43x = 786,445,990.24
  5. Step 5: Solve for x
    x = 786,445,990.24/31,511.43
  6. Step 6: Final answer
    x = 24,957.48

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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.