Home / 31,521.30-43,501.41-17,375.70

Finding the Fourth Proportional to 31,521.30, 43,501.41 and 17,375.70

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Solution

The fourth proportional to 31,521.30, 43,501.41 and 17,375.70 is: 23,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,521.30 : 43,501.41 = 17,375.70 : x
  2. Step 2: Convert to fraction form
    31,521.30/43,501.41 = 17,375.70/x
  3. Step 3: Cross multiply
    31,521.30x = 43,501.41 × 17,375.70
  4. Step 4: Simplify right side
    31,521.30x = 755,867,449.74
  5. Step 5: Solve for x
    x = 755,867,449.74/31,521.30
  6. Step 6: Final answer
    x = 23,979.58

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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.