Home / 27,768.14-38,319.94-15,192.90

Finding the Fourth Proportional to 27,768.14, 38,319.94 and 15,192.90

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Solution

The fourth proportional to 27,768.14, 38,319.94 and 15,192.90 is: 20,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,768.14 : 38,319.94 = 15,192.90 : x
  2. Step 2: Convert to fraction form
    27,768.14/38,319.94 = 15,192.90/x
  3. Step 3: Cross multiply
    27,768.14x = 38,319.94 × 15,192.90
  4. Step 4: Simplify right side
    27,768.14x = 582,191,016.43
  5. Step 5: Solve for x
    x = 582,191,016.43/27,768.14
  6. Step 6: Final answer
    x = 20,966.15

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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.