Home / 28,049.44-38,694.36-18,353.20

Finding the Fourth Proportional to 28,049.44, 38,694.36 and 18,353.20

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Solution

The fourth proportional to 28,049.44, 38,694.36 and 18,353.20 is: 25,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049.44 : 38,694.36 = 18,353.20 : x
  2. Step 2: Convert to fraction form
    28,049.44/38,694.36 = 18,353.20/x
  3. Step 3: Cross multiply
    28,049.44x = 38,694.36 × 18,353.20
  4. Step 4: Simplify right side
    28,049.44x = 710,165,327.95
  5. Step 5: Solve for x
    x = 710,165,327.95/28,049.44
  6. Step 6: Final answer
    x = 25,318.34

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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.