Home / 19,543.68-26,976.24-15,591.96

Finding the Fourth Proportional to 19,543.68, 26,976.24 and 15,591.96

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Solution

The fourth proportional to 19,543.68, 26,976.24 and 15,591.96 is: 21,521.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,543.68 : 26,976.24 = 15,591.96 : x
  2. Step 2: Convert to fraction form
    19,543.68/26,976.24 = 15,591.96/x
  3. Step 3: Cross multiply
    19,543.68x = 26,976.24 × 15,591.96
  4. Step 4: Simplify right side
    19,543.68x = 420,612,455.03
  5. Step 5: Solve for x
    x = 420,612,455.03/19,543.68
  6. Step 6: Final answer
    x = 21,521.66

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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.