Home / 27,731.76-41,558.73-18,478.32

Finding the Fourth Proportional to 27,731.76, 41,558.73 and 18,478.32

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Solution

The fourth proportional to 27,731.76, 41,558.73 and 18,478.32 is: 27,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,731.76 : 41,558.73 = 18,478.32 : x
  2. Step 2: Convert to fraction form
    27,731.76/41,558.73 = 18,478.32/x
  3. Step 3: Cross multiply
    27,731.76x = 41,558.73 × 18,478.32
  4. Step 4: Simplify right side
    27,731.76x = 767,935,511.73
  5. Step 5: Solve for x
    x = 767,935,511.73/27,731.76
  6. Step 6: Final answer
    x = 27,691.55

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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.