Home / 20,204.96-30,296.46-10,856.12

Finding the Fourth Proportional to 20,204.96, 30,296.46 and 10,856.12

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Solution

The fourth proportional to 20,204.96, 30,296.46 and 10,856.12 is: 16,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.96 : 30,296.46 = 10,856.12 : x
  2. Step 2: Convert to fraction form
    20,204.96/30,296.46 = 10,856.12/x
  3. Step 3: Cross multiply
    20,204.96x = 30,296.46 × 10,856.12
  4. Step 4: Simplify right side
    20,204.96x = 328,902,005.34
  5. Step 5: Solve for x
    x = 328,902,005.34/20,204.96
  6. Step 6: Final answer
    x = 16,278.28

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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.