Home / 20,442.28-30,663.03-11,141.49

Finding the Fourth Proportional to 20,442.28, 30,663.03 and 11,141.49

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Solution

The fourth proportional to 20,442.28, 30,663.03 and 11,141.49 is: 16,712.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.28 : 30,663.03 = 11,141.49 : x
  2. Step 2: Convert to fraction form
    20,442.28/30,663.03 = 11,141.49/x
  3. Step 3: Cross multiply
    20,442.28x = 30,663.03 × 11,141.49
  4. Step 4: Simplify right side
    20,442.28x = 341,631,768.91
  5. Step 5: Solve for x
    x = 341,631,768.91/20,442.28
  6. Step 6: Final answer
    x = 16,712.02

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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.