Home / 19,299.25-28,997.28-12,282.29

Finding the Fourth Proportional to 19,299.25, 28,997.28 and 12,282.29

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Solution

The fourth proportional to 19,299.25, 28,997.28 and 12,282.29 is: 18,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,299.25 : 28,997.28 = 12,282.29 : x
  2. Step 2: Convert to fraction form
    19,299.25/28,997.28 = 12,282.29/x
  3. Step 3: Cross multiply
    19,299.25x = 28,997.28 × 12,282.29
  4. Step 4: Simplify right side
    19,299.25x = 356,153,002.17
  5. Step 5: Solve for x
    x = 356,153,002.17/19,299.25
  6. Step 6: Final answer
    x = 18,454.24

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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.