Home / 28,236.57-42,358.53-8,517.12

Finding the Fourth Proportional to 28,236.57, 42,358.53 and 8,517.12

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Solution

The fourth proportional to 28,236.57, 42,358.53 and 8,517.12 is: 12,776.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.57 : 42,358.53 = 8,517.12 : x
  2. Step 2: Convert to fraction form
    28,236.57/42,358.53 = 8,517.12/x
  3. Step 3: Cross multiply
    28,236.57x = 42,358.53 × 8,517.12
  4. Step 4: Simplify right side
    28,236.57x = 360,772,683.03
  5. Step 5: Solve for x
    x = 360,772,683.03/28,236.57
  6. Step 6: Final answer
    x = 12,776.79

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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.