Home / 20,995.20-31,497.96-6,204.04

Finding the Fourth Proportional to 20,995.20, 31,497.96 and 6,204.04

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Solution

The fourth proportional to 20,995.20, 31,497.96 and 6,204.04 is: 9,307.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995.20 : 31,497.96 = 6,204.04 : x
  2. Step 2: Convert to fraction form
    20,995.20/31,497.96 = 6,204.04/x
  3. Step 3: Cross multiply
    20,995.20x = 31,497.96 × 6,204.04
  4. Step 4: Simplify right side
    20,995.20x = 195,414,603.76
  5. Step 5: Solve for x
    x = 195,414,603.76/20,995.20
  6. Step 6: Final answer
    x = 9,307.58

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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.