Home / 38,278.64-57,367.56-20,507.24

Finding the Fourth Proportional to 38,278.64, 57,367.56 and 20,507.24

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Solution

The fourth proportional to 38,278.64, 57,367.56 and 20,507.24 is: 30,733.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,278.64 : 57,367.56 = 20,507.24 : x
  2. Step 2: Convert to fraction form
    38,278.64/57,367.56 = 20,507.24/x
  3. Step 3: Cross multiply
    38,278.64x = 57,367.56 × 20,507.24
  4. Step 4: Simplify right side
    38,278.64x = 1,176,450,321.13
  5. Step 5: Solve for x
    x = 1,176,450,321.13/38,278.64
  6. Step 6: Final answer
    x = 30,733.86

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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.