Home / 20,634.30-30,963.74-7,487.70

Finding the Fourth Proportional to 20,634.30, 30,963.74 and 7,487.70

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Solution

The fourth proportional to 20,634.30, 30,963.74 and 7,487.70 is: 11,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.30 : 30,963.74 = 7,487.70 : x
  2. Step 2: Convert to fraction form
    20,634.30/30,963.74 = 7,487.70/x
  3. Step 3: Cross multiply
    20,634.30x = 30,963.74 × 7,487.70
  4. Step 4: Simplify right side
    20,634.30x = 231,847,196.00
  5. Step 5: Solve for x
    x = 231,847,196.00/20,634.30
  6. Step 6: Final answer
    x = 11,236.01

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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.