Home / 25,389.44-38,082.72-6,920

Finding the Fourth Proportional to 25,389.44, 38,082.72 and 6,920

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Solution

The fourth proportional to 25,389.44, 38,082.72 and 6,920 is: 10,379.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,389.44 : 38,082.72 = 6,920 : x
  2. Step 2: Convert to fraction form
    25,389.44/38,082.72 = 6,920/x
  3. Step 3: Cross multiply
    25,389.44x = 38,082.72 × 6,920
  4. Step 4: Simplify right side
    25,389.44x = 263,532,422.40
  5. Step 5: Solve for x
    x = 263,532,422.40/25,389.44
  6. Step 6: Final answer
    x = 10,379.61

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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.