Home / 38,478.15-57,716.60-12,182.85

Finding the Fourth Proportional to 38,478.15, 57,716.60 and 12,182.85

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Solution

The fourth proportional to 38,478.15, 57,716.60 and 12,182.85 is: 18,274.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.15 : 57,716.60 = 12,182.85 : x
  2. Step 2: Convert to fraction form
    38,478.15/57,716.60 = 12,182.85/x
  3. Step 3: Cross multiply
    38,478.15x = 57,716.60 × 12,182.85
  4. Step 4: Simplify right side
    38,478.15x = 703,152,619.40
  5. Step 5: Solve for x
    x = 703,152,619.40/38,478.15
  6. Step 6: Final answer
    x = 18,274.08

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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.