Home / 31,122.56-42,950.66-17,514.86

Finding the Fourth Proportional to 31,122.56, 42,950.66 and 17,514.86

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Solution

The fourth proportional to 31,122.56, 42,950.66 and 17,514.86 is: 24,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,122.56 : 42,950.66 = 17,514.86 : x
  2. Step 2: Convert to fraction form
    31,122.56/42,950.66 = 17,514.86/x
  3. Step 3: Cross multiply
    31,122.56x = 42,950.66 × 17,514.86
  4. Step 4: Simplify right side
    31,122.56x = 752,274,494.48
  5. Step 5: Solve for x
    x = 752,274,494.48/31,122.56
  6. Step 6: Final answer
    x = 24,171.35

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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.