Home / 21,425.87-32,140.33-6,632.88

Finding the Fourth Proportional to 21,425.87, 32,140.33 and 6,632.88

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Solution

The fourth proportional to 21,425.87, 32,140.33 and 6,632.88 is: 9,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.87 : 32,140.33 = 6,632.88 : x
  2. Step 2: Convert to fraction form
    21,425.87/32,140.33 = 6,632.88/x
  3. Step 3: Cross multiply
    21,425.87x = 32,140.33 × 6,632.88
  4. Step 4: Simplify right side
    21,425.87x = 213,182,952.05
  5. Step 5: Solve for x
    x = 213,182,952.05/21,425.87
  6. Step 6: Final answer
    x = 9,949.79

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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.