Home / 38,441.13-57,661.35-12,145.88

Finding the Fourth Proportional to 38,441.13, 57,661.35 and 12,145.88

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Solution

The fourth proportional to 38,441.13, 57,661.35 and 12,145.88 is: 18,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,441.13 : 57,661.35 = 12,145.88 : x
  2. Step 2: Convert to fraction form
    38,441.13/57,661.35 = 12,145.88/x
  3. Step 3: Cross multiply
    38,441.13x = 57,661.35 × 12,145.88
  4. Step 4: Simplify right side
    38,441.13x = 700,347,549.43
  5. Step 5: Solve for x
    x = 700,347,549.43/38,441.13
  6. Step 6: Final answer
    x = 18,218.70

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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.