Home / 19,930.05-29,841.62-11,139.93

Finding the Fourth Proportional to 19,930.05, 29,841.62 and 11,139.93

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Solution

The fourth proportional to 19,930.05, 29,841.62 and 11,139.93 is: 16,680.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.05 : 29,841.62 = 11,139.93 : x
  2. Step 2: Convert to fraction form
    19,930.05/29,841.62 = 11,139.93/x
  3. Step 3: Cross multiply
    19,930.05x = 29,841.62 × 11,139.93
  4. Step 4: Simplify right side
    19,930.05x = 332,433,502.19
  5. Step 5: Solve for x
    x = 332,433,502.19/19,930.05
  6. Step 6: Final answer
    x = 16,680.01

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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.