Home / 39,865.80-59,847.30-20,134.20

Finding the Fourth Proportional to 39,865.80, 59,847.30 and 20,134.20

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Solution

The fourth proportional to 39,865.80, 59,847.30 and 20,134.20 is: 30,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865.80 : 59,847.30 = 20,134.20 : x
  2. Step 2: Convert to fraction form
    39,865.80/59,847.30 = 20,134.20/x
  3. Step 3: Cross multiply
    39,865.80x = 59,847.30 × 20,134.20
  4. Step 4: Simplify right side
    39,865.80x = 1,204,977,507.66
  5. Step 5: Solve for x
    x = 1,204,977,507.66/39,865.80
  6. Step 6: Final answer
    x = 30,225.85

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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.