Home / 21,799.28-30,082.44-12,726.38

Finding the Fourth Proportional to 21,799.28, 30,082.44 and 12,726.38

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Solution

The fourth proportional to 21,799.28, 30,082.44 and 12,726.38 is: 17,562.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.28 : 30,082.44 = 12,726.38 : x
  2. Step 2: Convert to fraction form
    21,799.28/30,082.44 = 12,726.38/x
  3. Step 3: Cross multiply
    21,799.28x = 30,082.44 × 12,726.38
  4. Step 4: Simplify right side
    21,799.28x = 382,840,562.77
  5. Step 5: Solve for x
    x = 382,840,562.77/21,799.28
  6. Step 6: Final answer
    x = 17,562.07

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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.