Home / 21,680.28-32,519.95-9,993.49

Finding the Fourth Proportional to 21,680.28, 32,519.95 and 9,993.49

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Solution

The fourth proportional to 21,680.28, 32,519.95 and 9,993.49 is: 14,990.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,680.28 : 32,519.95 = 9,993.49 : x
  2. Step 2: Convert to fraction form
    21,680.28/32,519.95 = 9,993.49/x
  3. Step 3: Cross multiply
    21,680.28x = 32,519.95 × 9,993.49
  4. Step 4: Simplify right side
    21,680.28x = 324,987,795.13
  5. Step 5: Solve for x
    x = 324,987,795.13/21,680.28
  6. Step 6: Final answer
    x = 14,990.02

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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.