Home / 20,663.46-30,999.52-10,800.08

Finding the Fourth Proportional to 20,663.46, 30,999.52 and 10,800.08

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Solution

The fourth proportional to 20,663.46, 30,999.52 and 10,800.08 is: 16,202.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663.46 : 30,999.52 = 10,800.08 : x
  2. Step 2: Convert to fraction form
    20,663.46/30,999.52 = 10,800.08/x
  3. Step 3: Cross multiply
    20,663.46x = 30,999.52 × 10,800.08
  4. Step 4: Simplify right side
    20,663.46x = 334,797,295.96
  5. Step 5: Solve for x
    x = 334,797,295.96/20,663.46
  6. Step 6: Final answer
    x = 16,202.38

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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.