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Finding the Fourth Proportional to 19,998.48, 30,000.92 and 10,133.76

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Solution

The fourth proportional to 19,998.48, 30,000.92 and 10,133.76 is: 15,202.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.48 : 30,000.92 = 10,133.76 : x
  2. Step 2: Convert to fraction form
    19,998.48/30,000.92 = 10,133.76/x
  3. Step 3: Cross multiply
    19,998.48x = 30,000.92 × 10,133.76
  4. Step 4: Simplify right side
    19,998.48x = 304,022,123.06
  5. Step 5: Solve for x
    x = 304,022,123.06/19,998.48
  6. Step 6: Final answer
    x = 15,202.26

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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.