Home / 28,861.38-43,293.70-8,086.50

Finding the Fourth Proportional to 28,861.38, 43,293.70 and 8,086.50

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Solution

The fourth proportional to 28,861.38, 43,293.70 and 8,086.50 is: 12,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.38 : 43,293.70 = 8,086.50 : x
  2. Step 2: Convert to fraction form
    28,861.38/43,293.70 = 8,086.50/x
  3. Step 3: Cross multiply
    28,861.38x = 43,293.70 × 8,086.50
  4. Step 4: Simplify right side
    28,861.38x = 350,094,505.05
  5. Step 5: Solve for x
    x = 350,094,505.05/28,861.38
  6. Step 6: Final answer
    x = 12,130.21

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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.