Home / 27,882.65-38,467.10-15,939.59

Finding the Fourth Proportional to 27,882.65, 38,467.10 and 15,939.59

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Solution

The fourth proportional to 27,882.65, 38,467.10 and 15,939.59 is: 21,990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,882.65 : 38,467.10 = 15,939.59 : x
  2. Step 2: Convert to fraction form
    27,882.65/38,467.10 = 15,939.59/x
  3. Step 3: Cross multiply
    27,882.65x = 38,467.10 × 15,939.59
  4. Step 4: Simplify right side
    27,882.65x = 613,149,530.46
  5. Step 5: Solve for x
    x = 613,149,530.46/27,882.65
  6. Step 6: Final answer
    x = 21,990.36

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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.