Home / 27,882.72-38,476.84-15,135.62

Finding the Fourth Proportional to 27,882.72, 38,476.84 and 15,135.62

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Solution

The fourth proportional to 27,882.72, 38,476.84 and 15,135.62 is: 20,886.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,882.72 : 38,476.84 = 15,135.62 : x
  2. Step 2: Convert to fraction form
    27,882.72/38,476.84 = 15,135.62/x
  3. Step 3: Cross multiply
    27,882.72x = 38,476.84 × 15,135.62
  4. Step 4: Simplify right side
    27,882.72x = 582,370,829.04
  5. Step 5: Solve for x
    x = 582,370,829.04/27,882.72
  6. Step 6: Final answer
    x = 20,886.44

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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.