Home / 21,200.46-31,645.68-19,658.52

Finding the Fourth Proportional to 21,200.46, 31,645.68 and 19,658.52

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Solution

The fourth proportional to 21,200.46, 31,645.68 and 19,658.52 is: 29,344.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.46 : 31,645.68 = 19,658.52 : x
  2. Step 2: Convert to fraction form
    21,200.46/31,645.68 = 19,658.52/x
  3. Step 3: Cross multiply
    21,200.46x = 31,645.68 × 19,658.52
  4. Step 4: Simplify right side
    21,200.46x = 622,107,233.19
  5. Step 5: Solve for x
    x = 622,107,233.19/21,200.46
  6. Step 6: Final answer
    x = 29,344.04

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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.