Home / 34,986.80-52,480.20-20,188.10

Finding the Fourth Proportional to 34,986.80, 52,480.20 and 20,188.10

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Solution

The fourth proportional to 34,986.80, 52,480.20 and 20,188.10 is: 30,282.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,986.80 : 52,480.20 = 20,188.10 : x
  2. Step 2: Convert to fraction form
    34,986.80/52,480.20 = 20,188.10/x
  3. Step 3: Cross multiply
    34,986.80x = 52,480.20 × 20,188.10
  4. Step 4: Simplify right side
    34,986.80x = 1,059,475,525.62
  5. Step 5: Solve for x
    x = 1,059,475,525.62/34,986.80
  6. Step 6: Final answer
    x = 30,282.15

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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.