Home / 25,764.20-38,690.36-15,827.20

Finding the Fourth Proportional to 25,764.20, 38,690.36 and 15,827.20

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Solution

The fourth proportional to 25,764.20, 38,690.36 and 15,827.20 is: 23,767.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,764.20 : 38,690.36 = 15,827.20 : x
  2. Step 2: Convert to fraction form
    25,764.20/38,690.36 = 15,827.20/x
  3. Step 3: Cross multiply
    25,764.20x = 38,690.36 × 15,827.20
  4. Step 4: Simplify right side
    25,764.20x = 612,360,065.79
  5. Step 5: Solve for x
    x = 612,360,065.79/25,764.20
  6. Step 6: Final answer
    x = 23,767.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.