Home / 28,447.32-42,671.04-15,305.88

Finding the Fourth Proportional to 28,447.32, 42,671.04 and 15,305.88

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Solution

The fourth proportional to 28,447.32, 42,671.04 and 15,305.88 is: 22,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447.32 : 42,671.04 = 15,305.88 : x
  2. Step 2: Convert to fraction form
    28,447.32/42,671.04 = 15,305.88/x
  3. Step 3: Cross multiply
    28,447.32x = 42,671.04 × 15,305.88
  4. Step 4: Simplify right side
    28,447.32x = 653,117,817.72
  5. Step 5: Solve for x
    x = 653,117,817.72/28,447.32
  6. Step 6: Final answer
    x = 22,958.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.