Home / 27,789.12-41,652.09-12,995.28

Finding the Fourth Proportional to 27,789.12, 41,652.09 and 12,995.28

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Solution

The fourth proportional to 27,789.12, 41,652.09 and 12,995.28 is: 19,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,789.12 : 41,652.09 = 12,995.28 : x
  2. Step 2: Convert to fraction form
    27,789.12/41,652.09 = 12,995.28/x
  3. Step 3: Cross multiply
    27,789.12x = 41,652.09 × 12,995.28
  4. Step 4: Simplify right side
    27,789.12x = 541,280,572.14
  5. Step 5: Solve for x
    x = 541,280,572.14/27,789.12
  6. Step 6: Final answer
    x = 19,478.15

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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.