Home / 57,918.68-86,882.88-18,481.40

Finding the Fourth Proportional to 57,918.68, 86,882.88 and 18,481.40

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Solution

The fourth proportional to 57,918.68, 86,882.88 and 18,481.40 is: 27,723.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,918.68 : 86,882.88 = 18,481.40 : x
  2. Step 2: Convert to fraction form
    57,918.68/86,882.88 = 18,481.40/x
  3. Step 3: Cross multiply
    57,918.68x = 86,882.88 × 18,481.40
  4. Step 4: Simplify right side
    57,918.68x = 1,605,717,258.43
  5. Step 5: Solve for x
    x = 1,605,717,258.43/57,918.68
  6. Step 6: Final answer
    x = 27,723.65

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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.