Home / 27,928.62-38,540.52-15,353.28

Finding the Fourth Proportional to 27,928.62, 38,540.52 and 15,353.28

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Solution

The fourth proportional to 27,928.62, 38,540.52 and 15,353.28 is: 21,186.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.62 : 38,540.52 = 15,353.28 : x
  2. Step 2: Convert to fraction form
    27,928.62/38,540.52 = 15,353.28/x
  3. Step 3: Cross multiply
    27,928.62x = 38,540.52 × 15,353.28
  4. Step 4: Simplify right side
    27,928.62x = 591,723,394.91
  5. Step 5: Solve for x
    x = 591,723,394.91/27,928.62
  6. Step 6: Final answer
    x = 21,186.99

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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.