Home / 20,146.73-30,212.85-7,663.43

Finding the Fourth Proportional to 20,146.73, 30,212.85 and 7,663.43

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Solution

The fourth proportional to 20,146.73, 30,212.85 and 7,663.43 is: 11,492.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.73 : 30,212.85 = 7,663.43 : x
  2. Step 2: Convert to fraction form
    20,146.73/30,212.85 = 7,663.43/x
  3. Step 3: Cross multiply
    20,146.73x = 30,212.85 × 7,663.43
  4. Step 4: Simplify right side
    20,146.73x = 231,534,061.08
  5. Step 5: Solve for x
    x = 231,534,061.08/20,146.73
  6. Step 6: Final answer
    x = 11,492.39

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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.