Home / 27,868.24-38,459.28-15,293.44

Finding the Fourth Proportional to 27,868.24, 38,459.28 and 15,293.44

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Solution

The fourth proportional to 27,868.24, 38,459.28 and 15,293.44 is: 21,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.24 : 38,459.28 = 15,293.44 : x
  2. Step 2: Convert to fraction form
    27,868.24/38,459.28 = 15,293.44/x
  3. Step 3: Cross multiply
    27,868.24x = 38,459.28 × 15,293.44
  4. Step 4: Simplify right side
    27,868.24x = 588,174,691.12
  5. Step 5: Solve for x
    x = 588,174,691.12/27,868.24
  6. Step 6: Final answer
    x = 21,105.56

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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.