Home / 27,967.90-38,595.20-15,220.64

Finding the Fourth Proportional to 27,967.90, 38,595.20 and 15,220.64

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Solution

The fourth proportional to 27,967.90, 38,595.20 and 15,220.64 is: 21,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,967.90 : 38,595.20 = 15,220.64 : x
  2. Step 2: Convert to fraction form
    27,967.90/38,595.20 = 15,220.64/x
  3. Step 3: Cross multiply
    27,967.90x = 38,595.20 × 15,220.64
  4. Step 4: Simplify right side
    27,967.90x = 587,443,375.85
  5. Step 5: Solve for x
    x = 587,443,375.85/27,967.90
  6. Step 6: Final answer
    x = 21,004.20

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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.