Home / 27,921.60-41,882.40-7,145.10

Finding the Fourth Proportional to 27,921.60, 41,882.40 and 7,145.10

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Solution

The fourth proportional to 27,921.60, 41,882.40 and 7,145.10 is: 10,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.60 : 41,882.40 = 7,145.10 : x
  2. Step 2: Convert to fraction form
    27,921.60/41,882.40 = 7,145.10/x
  3. Step 3: Cross multiply
    27,921.60x = 41,882.40 × 7,145.10
  4. Step 4: Simplify right side
    27,921.60x = 299,253,936.24
  5. Step 5: Solve for x
    x = 299,253,936.24/27,921.60
  6. Step 6: Final answer
    x = 10,717.65

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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.