Home / 38,785.32-58,195.26-20,313

Finding the Fourth Proportional to 38,785.32, 58,195.26 and 20,313

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Solution

The fourth proportional to 38,785.32, 58,195.26 and 20,313 is: 30,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,785.32 : 58,195.26 = 20,313 : x
  2. Step 2: Convert to fraction form
    38,785.32/58,195.26 = 20,313/x
  3. Step 3: Cross multiply
    38,785.32x = 58,195.26 × 20,313
  4. Step 4: Simplify right side
    38,785.32x = 1,182,120,316.38
  5. Step 5: Solve for x
    x = 1,182,120,316.38/38,785.32
  6. Step 6: Final answer
    x = 30,478.55

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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.