Home / 20,618.28-30,937.11-7,467.12

Finding the Fourth Proportional to 20,618.28, 30,937.11 and 7,467.12

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Solution

The fourth proportional to 20,618.28, 30,937.11 and 7,467.12 is: 11,204.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618.28 : 30,937.11 = 7,467.12 : x
  2. Step 2: Convert to fraction form
    20,618.28/30,937.11 = 7,467.12/x
  3. Step 3: Cross multiply
    20,618.28x = 30,937.11 × 7,467.12
  4. Step 4: Simplify right side
    20,618.28x = 231,011,112.82
  5. Step 5: Solve for x
    x = 231,011,112.82/20,618.28
  6. Step 6: Final answer
    x = 11,204.19

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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.