Home / 28,010.12-42,000.60-8,286.02

Finding the Fourth Proportional to 28,010.12, 42,000.60 and 8,286.02

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Solution

The fourth proportional to 28,010.12, 42,000.60 and 8,286.02 is: 12,424.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.12 : 42,000.60 = 8,286.02 : x
  2. Step 2: Convert to fraction form
    28,010.12/42,000.60 = 8,286.02/x
  3. Step 3: Cross multiply
    28,010.12x = 42,000.60 × 8,286.02
  4. Step 4: Simplify right side
    28,010.12x = 348,017,811.61
  5. Step 5: Solve for x
    x = 348,017,811.61/28,010.12
  6. Step 6: Final answer
    x = 12,424.72

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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.