Home / 21,543.24-32,156.96-19,960.14

Finding the Fourth Proportional to 21,543.24, 32,156.96 and 19,960.14

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Solution

The fourth proportional to 21,543.24, 32,156.96 and 19,960.14 is: 29,793.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,543.24 : 32,156.96 = 19,960.14 : x
  2. Step 2: Convert to fraction form
    21,543.24/32,156.96 = 19,960.14/x
  3. Step 3: Cross multiply
    21,543.24x = 32,156.96 × 19,960.14
  4. Step 4: Simplify right side
    21,543.24x = 641,857,423.57
  5. Step 5: Solve for x
    x = 641,857,423.57/21,543.24
  6. Step 6: Final answer
    x = 29,793.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.