Home / 31,712.32-43,760.16-17,561.44

Finding the Fourth Proportional to 31,712.32, 43,760.16 and 17,561.44

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Solution

The fourth proportional to 31,712.32, 43,760.16 and 17,561.44 is: 24,233.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712.32 : 43,760.16 = 17,561.44 : x
  2. Step 2: Convert to fraction form
    31,712.32/43,760.16 = 17,561.44/x
  3. Step 3: Cross multiply
    31,712.32x = 43,760.16 × 17,561.44
  4. Step 4: Simplify right side
    31,712.32x = 768,491,424.23
  5. Step 5: Solve for x
    x = 768,491,424.23/31,712.32
  6. Step 6: Final answer
    x = 24,233.21

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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.