Home / 39,855.20-59,821.92-30,407.36

Finding the Fourth Proportional to 39,855.20, 59,821.92 and 30,407.36

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Solution

The fourth proportional to 39,855.20, 59,821.92 and 30,407.36 is: 45,640.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,855.20 : 59,821.92 = 30,407.36 : x
  2. Step 2: Convert to fraction form
    39,855.20/59,821.92 = 30,407.36/x
  3. Step 3: Cross multiply
    39,855.20x = 59,821.92 × 30,407.36
  4. Step 4: Simplify right side
    39,855.20x = 1,819,026,657.33
  5. Step 5: Solve for x
    x = 1,819,026,657.33/39,855.20
  6. Step 6: Final answer
    x = 45,640.89

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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.