Home / 28,732.12-43,114.88-12,091.08

Finding the Fourth Proportional to 28,732.12, 43,114.88 and 12,091.08

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Solution

The fourth proportional to 28,732.12, 43,114.88 and 12,091.08 is: 18,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732.12 : 43,114.88 = 12,091.08 : x
  2. Step 2: Convert to fraction form
    28,732.12/43,114.88 = 12,091.08/x
  3. Step 3: Cross multiply
    28,732.12x = 43,114.88 × 12,091.08
  4. Step 4: Simplify right side
    28,732.12x = 521,305,463.27
  5. Step 5: Solve for x
    x = 521,305,463.27/28,732.12
  6. Step 6: Final answer
    x = 18,143.65

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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.