Home / 27,967.20-38,595.60-15,221.31

Finding the Fourth Proportional to 27,967.20, 38,595.60 and 15,221.31

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Solution

The fourth proportional to 27,967.20, 38,595.60 and 15,221.31 is: 21,005.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,967.20 : 38,595.60 = 15,221.31 : x
  2. Step 2: Convert to fraction form
    27,967.20/38,595.60 = 15,221.31/x
  3. Step 3: Cross multiply
    27,967.20x = 38,595.60 × 15,221.31
  4. Step 4: Simplify right side
    27,967.20x = 587,475,592.24
  5. Step 5: Solve for x
    x = 587,475,592.24/27,967.20
  6. Step 6: Final answer
    x = 21,005.88

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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.