Home / 28,790.40-43,189.92-9,066.90

Finding the Fourth Proportional to 28,790.40, 43,189.92 and 9,066.90

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Solution

The fourth proportional to 28,790.40, 43,189.92 and 9,066.90 is: 13,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.40 : 43,189.92 = 9,066.90 : x
  2. Step 2: Convert to fraction form
    28,790.40/43,189.92 = 9,066.90/x
  3. Step 3: Cross multiply
    28,790.40x = 43,189.92 × 9,066.90
  4. Step 4: Simplify right side
    28,790.40x = 391,598,685.65
  5. Step 5: Solve for x
    x = 391,598,685.65/28,790.40
  6. Step 6: Final answer
    x = 13,601.71

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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.