Home / 19,614.20-29,372.70-12,583.40

Finding the Fourth Proportional to 19,614.20, 29,372.70 and 12,583.40

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Solution

The fourth proportional to 19,614.20, 29,372.70 and 12,583.40 is: 18,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.20 : 29,372.70 = 12,583.40 : x
  2. Step 2: Convert to fraction form
    19,614.20/29,372.70 = 12,583.40/x
  3. Step 3: Cross multiply
    19,614.20x = 29,372.70 × 12,583.40
  4. Step 4: Simplify right side
    19,614.20x = 369,608,433.18
  5. Step 5: Solve for x
    x = 369,608,433.18/19,614.20
  6. Step 6: Final answer
    x = 18,843.92

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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.