Home / 31,521.68-43,499.38-17,375.84

Finding the Fourth Proportional to 31,521.68, 43,499.38 and 17,375.84

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Solution

The fourth proportional to 31,521.68, 43,499.38 and 17,375.84 is: 23,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,521.68 : 43,499.38 = 17,375.84 : x
  2. Step 2: Convert to fraction form
    31,521.68/43,499.38 = 17,375.84/x
  3. Step 3: Cross multiply
    31,521.68x = 43,499.38 × 17,375.84
  4. Step 4: Simplify right side
    31,521.68x = 755,838,266.98
  5. Step 5: Solve for x
    x = 755,838,266.98/31,521.68
  6. Step 6: Final answer
    x = 23,978.36

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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.