Home / 27,764.87-38,315.85-15,189.62

Finding the Fourth Proportional to 27,764.87, 38,315.85 and 15,189.62

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Solution

The fourth proportional to 27,764.87, 38,315.85 and 15,189.62 is: 20,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,764.87 : 38,315.85 = 15,189.62 : x
  2. Step 2: Convert to fraction form
    27,764.87/38,315.85 = 15,189.62/x
  3. Step 3: Cross multiply
    27,764.87x = 38,315.85 × 15,189.62
  4. Step 4: Simplify right side
    27,764.87x = 582,003,201.48
  5. Step 5: Solve for x
    x = 582,003,201.48/27,764.87
  6. Step 6: Final answer
    x = 20,961.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.