Home / 38,507.20-57,755.92-12,212.16

Finding the Fourth Proportional to 38,507.20, 57,755.92 and 12,212.16

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Solution

The fourth proportional to 38,507.20, 57,755.92 and 12,212.16 is: 18,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,507.20 : 57,755.92 = 12,212.16 : x
  2. Step 2: Convert to fraction form
    38,507.20/57,755.92 = 12,212.16/x
  3. Step 3: Cross multiply
    38,507.20x = 57,755.92 × 12,212.16
  4. Step 4: Simplify right side
    38,507.20x = 705,324,535.99
  5. Step 5: Solve for x
    x = 705,324,535.99/38,507.20
  6. Step 6: Final answer
    x = 18,316.69

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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.