Home / 23,082.79-31,854.21-12,472.39

Finding the Fourth Proportional to 23,082.79, 31,854.21 and 12,472.39

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Solution

The fourth proportional to 23,082.79, 31,854.21 and 12,472.39 is: 17,211.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,082.79 : 31,854.21 = 12,472.39 : x
  2. Step 2: Convert to fraction form
    23,082.79/31,854.21 = 12,472.39/x
  3. Step 3: Cross multiply
    23,082.79x = 31,854.21 × 12,472.39
  4. Step 4: Simplify right side
    23,082.79x = 397,298,130.26
  5. Step 5: Solve for x
    x = 397,298,130.26/23,082.79
  6. Step 6: Final answer
    x = 17,211.88

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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.