Home / 20,191.25-30,287.15-6,340.25

Finding the Fourth Proportional to 20,191.25, 30,287.15 and 6,340.25

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Solution

The fourth proportional to 20,191.25, 30,287.15 and 6,340.25 is: 9,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.25 : 30,287.15 = 6,340.25 : x
  2. Step 2: Convert to fraction form
    20,191.25/30,287.15 = 6,340.25/x
  3. Step 3: Cross multiply
    20,191.25x = 30,287.15 × 6,340.25
  4. Step 4: Simplify right side
    20,191.25x = 192,028,102.79
  5. Step 5: Solve for x
    x = 192,028,102.79/20,191.25
  6. Step 6: Final answer
    x = 9,510.46

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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.