Home / 28,755.20-43,149.51-12,114.16

Finding the Fourth Proportional to 28,755.20, 43,149.51 and 12,114.16

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Solution

The fourth proportional to 28,755.20, 43,149.51 and 12,114.16 is: 18,178.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.20 : 43,149.51 = 12,114.16 : x
  2. Step 2: Convert to fraction form
    28,755.20/43,149.51 = 12,114.16/x
  3. Step 3: Cross multiply
    28,755.20x = 43,149.51 × 12,114.16
  4. Step 4: Simplify right side
    28,755.20x = 522,719,960.19
  5. Step 5: Solve for x
    x = 522,719,960.19/28,755.20
  6. Step 6: Final answer
    x = 18,178.27

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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.