Home / 27,631.40-41,447.38-22,119.78

Finding the Fourth Proportional to 27,631.40, 41,447.38 and 22,119.78

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Solution

The fourth proportional to 27,631.40, 41,447.38 and 22,119.78 is: 33,179.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.40 : 41,447.38 = 22,119.78 : x
  2. Step 2: Convert to fraction form
    27,631.40/41,447.38 = 22,119.78/x
  3. Step 3: Cross multiply
    27,631.40x = 41,447.38 × 22,119.78
  4. Step 4: Simplify right side
    27,631.40x = 916,806,927.18
  5. Step 5: Solve for x
    x = 916,806,927.18/27,631.40
  6. Step 6: Final answer
    x = 33,179.89

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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.