Home / 38,441.12-57,661.88-12,145.95

Finding the Fourth Proportional to 38,441.12, 57,661.88 and 12,145.95

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Solution

The fourth proportional to 38,441.12, 57,661.88 and 12,145.95 is: 18,218.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,441.12 : 57,661.88 = 12,145.95 : x
  2. Step 2: Convert to fraction form
    38,441.12/57,661.88 = 12,145.95/x
  3. Step 3: Cross multiply
    38,441.12x = 57,661.88 × 12,145.95
  4. Step 4: Simplify right side
    38,441.12x = 700,358,250.66
  5. Step 5: Solve for x
    x = 700,358,250.66/38,441.12
  6. Step 6: Final answer
    x = 18,218.99

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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.