Home / 25,638.74-38,456.28-6,919.84

Finding the Fourth Proportional to 25,638.74, 38,456.28 and 6,919.84

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Solution

The fourth proportional to 25,638.74, 38,456.28 and 6,919.84 is: 10,379.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,638.74 : 38,456.28 = 6,919.84 : x
  2. Step 2: Convert to fraction form
    25,638.74/38,456.28 = 6,919.84/x
  3. Step 3: Cross multiply
    25,638.74x = 38,456.28 × 6,919.84
  4. Step 4: Simplify right side
    25,638.74x = 266,111,254.24
  5. Step 5: Solve for x
    x = 266,111,254.24/25,638.74
  6. Step 6: Final answer
    x = 10,379.27

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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.