Home / 27,675.78-38,192.22-15,099.72

Finding the Fourth Proportional to 27,675.78, 38,192.22 and 15,099.72

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Solution

The fourth proportional to 27,675.78, 38,192.22 and 15,099.72 is: 20,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,675.78 : 38,192.22 = 15,099.72 : x
  2. Step 2: Convert to fraction form
    27,675.78/38,192.22 = 15,099.72/x
  3. Step 3: Cross multiply
    27,675.78x = 38,192.22 × 15,099.72
  4. Step 4: Simplify right side
    27,675.78x = 576,691,828.18
  5. Step 5: Solve for x
    x = 576,691,828.18/27,675.78
  6. Step 6: Final answer
    x = 20,837.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.