Home / 28,022.13-38,671.20-15,446.88

Finding the Fourth Proportional to 28,022.13, 38,671.20 and 15,446.88

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Solution

The fourth proportional to 28,022.13, 38,671.20 and 15,446.88 is: 21,317.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.13 : 38,671.20 = 15,446.88 : x
  2. Step 2: Convert to fraction form
    28,022.13/38,671.20 = 15,446.88/x
  3. Step 3: Cross multiply
    28,022.13x = 38,671.20 × 15,446.88
  4. Step 4: Simplify right side
    28,022.13x = 597,349,385.86
  5. Step 5: Solve for x
    x = 597,349,385.86/28,022.13
  6. Step 6: Final answer
    x = 21,317.06

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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.