Home / 27,865.24-38,455.14-15,290.44

Finding the Fourth Proportional to 27,865.24, 38,455.14 and 15,290.44

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Solution

The fourth proportional to 27,865.24, 38,455.14 and 15,290.44 is: 21,101.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,865.24 : 38,455.14 = 15,290.44 : x
  2. Step 2: Convert to fraction form
    27,865.24/38,455.14 = 15,290.44/x
  3. Step 3: Cross multiply
    27,865.24x = 38,455.14 × 15,290.44
  4. Step 4: Simplify right side
    27,865.24x = 587,996,010.86
  5. Step 5: Solve for x
    x = 587,996,010.86/27,865.24
  6. Step 6: Final answer
    x = 21,101.42

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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.