Home / 39,680.38-59,546.49-18,905.50

Finding the Fourth Proportional to 39,680.38, 59,546.49 and 18,905.50

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Solution

The fourth proportional to 39,680.38, 59,546.49 and 18,905.50 is: 28,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.38 : 59,546.49 = 18,905.50 : x
  2. Step 2: Convert to fraction form
    39,680.38/59,546.49 = 18,905.50/x
  3. Step 3: Cross multiply
    39,680.38x = 59,546.49 × 18,905.50
  4. Step 4: Simplify right side
    39,680.38x = 1,125,756,166.70
  5. Step 5: Solve for x
    x = 1,125,756,166.70/39,680.38
  6. Step 6: Final answer
    x = 28,370.60

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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.