Home / 27,808.72-38,375.67-15,233.56

Finding the Fourth Proportional to 27,808.72, 38,375.67 and 15,233.56

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Solution

The fourth proportional to 27,808.72, 38,375.67 and 15,233.56 is: 21,022.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,808.72 : 38,375.67 = 15,233.56 : x
  2. Step 2: Convert to fraction form
    27,808.72/38,375.67 = 15,233.56/x
  3. Step 3: Cross multiply
    27,808.72x = 38,375.67 × 15,233.56
  4. Step 4: Simplify right side
    27,808.72x = 584,598,071.49
  5. Step 5: Solve for x
    x = 584,598,071.49/27,808.72
  6. Step 6: Final answer
    x = 21,022.11

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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.