Home / 39,908.12-59,899.11-20,200.52

Finding the Fourth Proportional to 39,908.12, 59,899.11 and 20,200.52

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Solution

The fourth proportional to 39,908.12, 59,899.11 and 20,200.52 is: 30,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,908.12 : 59,899.11 = 20,200.52 : x
  2. Step 2: Convert to fraction form
    39,908.12/59,899.11 = 20,200.52/x
  3. Step 3: Cross multiply
    39,908.12x = 59,899.11 × 20,200.52
  4. Step 4: Simplify right side
    39,908.12x = 1,209,993,169.54
  5. Step 5: Solve for x
    x = 1,209,993,169.54/39,908.12
  6. Step 6: Final answer
    x = 30,319.47

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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.