Home / 21,335.20-32,007.26-8,187.49

Finding the Fourth Proportional to 21,335.20, 32,007.26 and 8,187.49

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Solution

The fourth proportional to 21,335.20, 32,007.26 and 8,187.49 is: 12,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335.20 : 32,007.26 = 8,187.49 : x
  2. Step 2: Convert to fraction form
    21,335.20/32,007.26 = 8,187.49/x
  3. Step 3: Cross multiply
    21,335.20x = 32,007.26 × 8,187.49
  4. Step 4: Simplify right side
    21,335.20x = 262,059,121.18
  5. Step 5: Solve for x
    x = 262,059,121.18/21,335.20
  6. Step 6: Final answer
    x = 12,282.95

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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.