Home / 21,799.04-30,082.80-11,863.04

Finding the Fourth Proportional to 21,799.04, 30,082.80 and 11,863.04

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Solution

The fourth proportional to 21,799.04, 30,082.80 and 11,863.04 is: 16,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.04 : 30,082.80 = 11,863.04 : x
  2. Step 2: Convert to fraction form
    21,799.04/30,082.80 = 11,863.04/x
  3. Step 3: Cross multiply
    21,799.04x = 30,082.80 × 11,863.04
  4. Step 4: Simplify right side
    21,799.04x = 356,873,459.71
  5. Step 5: Solve for x
    x = 356,873,459.71/21,799.04
  6. Step 6: Final answer
    x = 16,371.06

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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.