Home / 20,292.16-28,006.38-12,336.88

Finding the Fourth Proportional to 20,292.16, 28,006.38 and 12,336.88

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Solution

The fourth proportional to 20,292.16, 28,006.38 and 12,336.88 is: 17,026.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.16 : 28,006.38 = 12,336.88 : x
  2. Step 2: Convert to fraction form
    20,292.16/28,006.38 = 12,336.88/x
  3. Step 3: Cross multiply
    20,292.16x = 28,006.38 × 12,336.88
  4. Step 4: Simplify right side
    20,292.16x = 345,511,349.29
  5. Step 5: Solve for x
    x = 345,511,349.29/20,292.16
  6. Step 6: Final answer
    x = 17,026.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.