Home / 25,671.72-38,521.12-18,223.38

Finding the Fourth Proportional to 25,671.72, 38,521.12 and 18,223.38

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Solution

The fourth proportional to 25,671.72, 38,521.12 and 18,223.38 is: 27,344.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,671.72 : 38,521.12 = 18,223.38 : x
  2. Step 2: Convert to fraction form
    25,671.72/38,521.12 = 18,223.38/x
  3. Step 3: Cross multiply
    25,671.72x = 38,521.12 × 18,223.38
  4. Step 4: Simplify right side
    25,671.72x = 701,984,996.40
  5. Step 5: Solve for x
    x = 701,984,996.40/25,671.72
  6. Step 6: Final answer
    x = 27,344.68

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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.