Home / 20,281.11-30,422.50-6,963.25

Finding the Fourth Proportional to 20,281.11, 30,422.50 and 6,963.25

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Solution

The fourth proportional to 20,281.11, 30,422.50 and 6,963.25 is: 10,445.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281.11 : 30,422.50 = 6,963.25 : x
  2. Step 2: Convert to fraction form
    20,281.11/30,422.50 = 6,963.25/x
  3. Step 3: Cross multiply
    20,281.11x = 30,422.50 × 6,963.25
  4. Step 4: Simplify right side
    20,281.11x = 211,839,473.13
  5. Step 5: Solve for x
    x = 211,839,473.13/20,281.11
  6. Step 6: Final answer
    x = 10,445.16

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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.