Home / 20,442.05-30,663.07-6,403.18

Finding the Fourth Proportional to 20,442.05, 30,663.07 and 6,403.18

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Solution

The fourth proportional to 20,442.05, 30,663.07 and 6,403.18 is: 9,604.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.05 : 30,663.07 = 6,403.18 : x
  2. Step 2: Convert to fraction form
    20,442.05/30,663.07 = 6,403.18/x
  3. Step 3: Cross multiply
    20,442.05x = 30,663.07 × 6,403.18
  4. Step 4: Simplify right side
    20,442.05x = 196,341,156.56
  5. Step 5: Solve for x
    x = 196,341,156.56/20,442.05
  6. Step 6: Final answer
    x = 9,604.77

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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.