Home / 19,915.38-29,859.30-8,816.04

Finding the Fourth Proportional to 19,915.38, 29,859.30 and 8,816.04

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Solution

The fourth proportional to 19,915.38, 29,859.30 and 8,816.04 is: 13,217.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.38 : 29,859.30 = 8,816.04 : x
  2. Step 2: Convert to fraction form
    19,915.38/29,859.30 = 8,816.04/x
  3. Step 3: Cross multiply
    19,915.38x = 29,859.30 × 8,816.04
  4. Step 4: Simplify right side
    19,915.38x = 263,240,783.17
  5. Step 5: Solve for x
    x = 263,240,783.17/19,915.38
  6. Step 6: Final answer
    x = 13,217.96

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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.