Home / 20,447.52-30,666.72-7,967.88

Finding the Fourth Proportional to 20,447.52, 30,666.72 and 7,967.88

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Solution

The fourth proportional to 20,447.52, 30,666.72 and 7,967.88 is: 11,950.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.52 : 30,666.72 = 7,967.88 : x
  2. Step 2: Convert to fraction form
    20,447.52/30,666.72 = 7,967.88/x
  3. Step 3: Cross multiply
    20,447.52x = 30,666.72 × 7,967.88
  4. Step 4: Simplify right side
    20,447.52x = 244,348,744.95
  5. Step 5: Solve for x
    x = 244,348,744.95/20,447.52
  6. Step 6: Final answer
    x = 11,950.04

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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.