Home / 39,243.60-58,874.08-12,947.28

Finding the Fourth Proportional to 39,243.60, 58,874.08 and 12,947.28

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Solution

The fourth proportional to 39,243.60, 58,874.08 and 12,947.28 is: 19,423.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,243.60 : 58,874.08 = 12,947.28 : x
  2. Step 2: Convert to fraction form
    39,243.60/58,874.08 = 12,947.28/x
  3. Step 3: Cross multiply
    39,243.60x = 58,874.08 × 12,947.28
  4. Step 4: Simplify right side
    39,243.60x = 762,259,198.50
  5. Step 5: Solve for x
    x = 762,259,198.50/39,243.60
  6. Step 6: Final answer
    x = 19,423.78

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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.