Home / 19,972.88-29,962.98-8,287.04

Finding the Fourth Proportional to 19,972.88, 29,962.98 and 8,287.04

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Solution

The fourth proportional to 19,972.88, 29,962.98 and 8,287.04 is: 12,432.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.88 : 29,962.98 = 8,287.04 : x
  2. Step 2: Convert to fraction form
    19,972.88/29,962.98 = 8,287.04/x
  3. Step 3: Cross multiply
    19,972.88x = 29,962.98 × 8,287.04
  4. Step 4: Simplify right side
    19,972.88x = 248,304,413.78
  5. Step 5: Solve for x
    x = 248,304,413.78/19,972.88
  6. Step 6: Final answer
    x = 12,432.08

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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.