Home / 38,357.64-57,519.99-13,390.20

Finding the Fourth Proportional to 38,357.64, 57,519.99 and 13,390.20

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Solution

The fourth proportional to 38,357.64, 57,519.99 and 13,390.20 is: 20,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,357.64 : 57,519.99 = 13,390.20 : x
  2. Step 2: Convert to fraction form
    38,357.64/57,519.99 = 13,390.20/x
  3. Step 3: Cross multiply
    38,357.64x = 57,519.99 × 13,390.20
  4. Step 4: Simplify right side
    38,357.64x = 770,204,170.10
  5. Step 5: Solve for x
    x = 770,204,170.10/38,357.64
  6. Step 6: Final answer
    x = 20,079.55

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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.