Home / 31,657.05-43,691.48-19,724.24

Finding the Fourth Proportional to 31,657.05, 43,691.48 and 19,724.24

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Solution

The fourth proportional to 31,657.05, 43,691.48 and 19,724.24 is: 27,222.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,657.05 : 43,691.48 = 19,724.24 : x
  2. Step 2: Convert to fraction form
    31,657.05/43,691.48 = 19,724.24/x
  3. Step 3: Cross multiply
    31,657.05x = 43,691.48 × 19,724.24
  4. Step 4: Simplify right side
    31,657.05x = 861,780,920.40
  5. Step 5: Solve for x
    x = 861,780,920.40/31,657.05
  6. Step 6: Final answer
    x = 27,222.40

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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.