Home / 27,192.76-40,778.89-13,148.12

Finding the Fourth Proportional to 27,192.76, 40,778.89 and 13,148.12

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Solution

The fourth proportional to 27,192.76, 40,778.89 and 13,148.12 is: 19,717.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,192.76 : 40,778.89 = 13,148.12 : x
  2. Step 2: Convert to fraction form
    27,192.76/40,778.89 = 13,148.12/x
  3. Step 3: Cross multiply
    27,192.76x = 40,778.89 × 13,148.12
  4. Step 4: Simplify right side
    27,192.76x = 536,165,882.22
  5. Step 5: Solve for x
    x = 536,165,882.22/27,192.76
  6. Step 6: Final answer
    x = 19,717.23

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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.