Home / 28,022.28-38,669.22-15,446.04

Finding the Fourth Proportional to 28,022.28, 38,669.22 and 15,446.04

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Solution

The fourth proportional to 28,022.28, 38,669.22 and 15,446.04 is: 21,314.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.28 : 38,669.22 = 15,446.04 : x
  2. Step 2: Convert to fraction form
    28,022.28/38,669.22 = 15,446.04/x
  3. Step 3: Cross multiply
    28,022.28x = 38,669.22 × 15,446.04
  4. Step 4: Simplify right side
    28,022.28x = 597,286,318.89
  5. Step 5: Solve for x
    x = 597,286,318.89/28,022.28
  6. Step 6: Final answer
    x = 21,314.69

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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.