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Finding the Fourth Proportional to 39,999.68, 60,012.48 and 13,704.65

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Solution

The fourth proportional to 39,999.68, 60,012.48 and 13,704.65 is: 20,561.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,999.68 : 60,012.48 = 13,704.65 : x
  2. Step 2: Convert to fraction form
    39,999.68/60,012.48 = 13,704.65/x
  3. Step 3: Cross multiply
    39,999.68x = 60,012.48 × 13,704.65
  4. Step 4: Simplify right side
    39,999.68x = 822,450,034.03
  5. Step 5: Solve for x
    x = 822,450,034.03/39,999.68
  6. Step 6: Final answer
    x = 20,561.42

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1.5x scale

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.