Home / 20,600.17-30,900.26-7,449.47

Finding the Fourth Proportional to 20,600.17, 30,900.26 and 7,449.47

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Solution

The fourth proportional to 20,600.17, 30,900.26 and 7,449.47 is: 11,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.17 : 30,900.26 = 7,449.47 : x
  2. Step 2: Convert to fraction form
    20,600.17/30,900.26 = 7,449.47/x
  3. Step 3: Cross multiply
    20,600.17x = 30,900.26 × 7,449.47
  4. Step 4: Simplify right side
    20,600.17x = 230,190,518.91
  5. Step 5: Solve for x
    x = 230,190,518.91/20,600.17
  6. Step 6: Final answer
    x = 11,174.20

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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.