Home / 28,353.12-42,517.40-8,627.10

Finding the Fourth Proportional to 28,353.12, 42,517.40 and 8,627.10

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Solution

The fourth proportional to 28,353.12, 42,517.40 and 8,627.10 is: 12,936.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.12 : 42,517.40 = 8,627.10 : x
  2. Step 2: Convert to fraction form
    28,353.12/42,517.40 = 8,627.10/x
  3. Step 3: Cross multiply
    28,353.12x = 42,517.40 × 8,627.10
  4. Step 4: Simplify right side
    28,353.12x = 366,801,861.54
  5. Step 5: Solve for x
    x = 366,801,861.54/28,353.12
  6. Step 6: Final answer
    x = 12,936.91

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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.