Home / 25,427.78-38,144.13-7,892.90

Finding the Fourth Proportional to 25,427.78, 38,144.13 and 7,892.90

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Solution

The fourth proportional to 25,427.78, 38,144.13 and 7,892.90 is: 11,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,427.78 : 38,144.13 = 7,892.90 : x
  2. Step 2: Convert to fraction form
    25,427.78/38,144.13 = 7,892.90/x
  3. Step 3: Cross multiply
    25,427.78x = 38,144.13 × 7,892.90
  4. Step 4: Simplify right side
    25,427.78x = 301,067,803.68
  5. Step 5: Solve for x
    x = 301,067,803.68/25,427.78
  6. Step 6: Final answer
    x = 11,840.11

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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.