Home / 27,345.30-40,974.78-19,915.56

Finding the Fourth Proportional to 27,345.30, 40,974.78 and 19,915.56

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Solution

The fourth proportional to 27,345.30, 40,974.78 and 19,915.56 is: 29,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,345.30 : 40,974.78 = 19,915.56 : x
  2. Step 2: Convert to fraction form
    27,345.30/40,974.78 = 19,915.56/x
  3. Step 3: Cross multiply
    27,345.30x = 40,974.78 × 19,915.56
  4. Step 4: Simplify right side
    27,345.30x = 816,035,689.58
  5. Step 5: Solve for x
    x = 816,035,689.58/27,345.30
  6. Step 6: Final answer
    x = 29,841.90

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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.