Home / 15,915.76-23,871.80-4,229.92

Finding the Fourth Proportional to 15,915.76, 23,871.80 and 4,229.92

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Solution

The fourth proportional to 15,915.76, 23,871.80 and 4,229.92 is: 6,344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915.76 : 23,871.80 = 4,229.92 : x
  2. Step 2: Convert to fraction form
    15,915.76/23,871.80 = 4,229.92/x
  3. Step 3: Cross multiply
    15,915.76x = 23,871.80 × 4,229.92
  4. Step 4: Simplify right side
    15,915.76x = 100,975,804.26
  5. Step 5: Solve for x
    x = 100,975,804.26/15,915.76
  6. Step 6: Final answer
    x = 6,344.39

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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.