Home / 20,652.09-30,964.22-12,337.91

Finding the Fourth Proportional to 20,652.09, 30,964.22 and 12,337.91

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Solution

The fourth proportional to 20,652.09, 30,964.22 and 12,337.91 is: 18,498.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.09 : 30,964.22 = 12,337.91 : x
  2. Step 2: Convert to fraction form
    20,652.09/30,964.22 = 12,337.91/x
  3. Step 3: Cross multiply
    20,652.09x = 30,964.22 × 12,337.91
  4. Step 4: Simplify right side
    20,652.09x = 382,033,759.58
  5. Step 5: Solve for x
    x = 382,033,759.58/20,652.09
  6. Step 6: Final answer
    x = 18,498.55

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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.