Home / 21,587.44-29,789.61-12,022.96

Finding the Fourth Proportional to 21,587.44, 29,789.61 and 12,022.96

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Solution

The fourth proportional to 21,587.44, 29,789.61 and 12,022.96 is: 16,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587.44 : 29,789.61 = 12,022.96 : x
  2. Step 2: Convert to fraction form
    21,587.44/29,789.61 = 12,022.96/x
  3. Step 3: Cross multiply
    21,587.44x = 29,789.61 × 12,022.96
  4. Step 4: Simplify right side
    21,587.44x = 358,159,289.45
  5. Step 5: Solve for x
    x = 358,159,289.45/21,587.44
  6. Step 6: Final answer
    x = 16,591.10

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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.