Home / 27,778.14-38,333.92-15,202.90

Finding the Fourth Proportional to 27,778.14, 38,333.92 and 15,202.90

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Solution

The fourth proportional to 27,778.14, 38,333.92 and 15,202.90 is: 20,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.14 : 38,333.92 = 15,202.90 : x
  2. Step 2: Convert to fraction form
    27,778.14/38,333.92 = 15,202.90/x
  3. Step 3: Cross multiply
    27,778.14x = 38,333.92 × 15,202.90
  4. Step 4: Simplify right side
    27,778.14x = 582,786,752.37
  5. Step 5: Solve for x
    x = 582,786,752.37/27,778.14
  6. Step 6: Final answer
    x = 20,980.05

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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.