Home / 19,916.18-29,906-11,602.23

Finding the Fourth Proportional to 19,916.18, 29,906 and 11,602.23

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Solution

The fourth proportional to 19,916.18, 29,906 and 11,602.23 is: 17,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.18 : 29,906 = 11,602.23 : x
  2. Step 2: Convert to fraction form
    19,916.18/29,906 = 11,602.23/x
  3. Step 3: Cross multiply
    19,916.18x = 29,906 × 11,602.23
  4. Step 4: Simplify right side
    19,916.18x = 346,976,290.38
  5. Step 5: Solve for x
    x = 346,976,290.38/19,916.18
  6. Step 6: Final answer
    x = 17,421.83

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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.