Home / 15,517.74-23,269.78-4,421.91

Finding the Fourth Proportional to 15,517.74, 23,269.78 and 4,421.91

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Solution

The fourth proportional to 15,517.74, 23,269.78 and 4,421.91 is: 6,630.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.74 : 23,269.78 = 4,421.91 : x
  2. Step 2: Convert to fraction form
    15,517.74/23,269.78 = 4,421.91/x
  3. Step 3: Cross multiply
    15,517.74x = 23,269.78 × 4,421.91
  4. Step 4: Simplify right side
    15,517.74x = 102,896,861.83
  5. Step 5: Solve for x
    x = 102,896,861.83/15,517.74
  6. Step 6: Final answer
    x = 6,630.92

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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.