Home / 38,378.60-57,573.14-13,412.85

Finding the Fourth Proportional to 38,378.60, 57,573.14 and 13,412.85

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Solution

The fourth proportional to 38,378.60, 57,573.14 and 13,412.85 is: 20,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,378.60 : 57,573.14 = 13,412.85 : x
  2. Step 2: Convert to fraction form
    38,378.60/57,573.14 = 13,412.85/x
  3. Step 3: Cross multiply
    38,378.60x = 57,573.14 × 13,412.85
  4. Step 4: Simplify right side
    38,378.60x = 772,219,890.85
  5. Step 5: Solve for x
    x = 772,219,890.85/38,378.60
  6. Step 6: Final answer
    x = 20,121.11

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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.