Home / 25,669.76-38,506.02-8,140.96

Finding the Fourth Proportional to 25,669.76, 38,506.02 and 8,140.96

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Solution

The fourth proportional to 25,669.76, 38,506.02 and 8,140.96 is: 12,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,669.76 : 38,506.02 = 8,140.96 : x
  2. Step 2: Convert to fraction form
    25,669.76/38,506.02 = 8,140.96/x
  3. Step 3: Cross multiply
    25,669.76x = 38,506.02 × 8,140.96
  4. Step 4: Simplify right side
    25,669.76x = 313,475,872.31
  5. Step 5: Solve for x
    x = 313,475,872.31/25,669.76
  6. Step 6: Final answer
    x = 12,211.87

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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.