Home / 19,688.97-29,500.03-11,881.38

Finding the Fourth Proportional to 19,688.97, 29,500.03 and 11,881.38

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Solution

The fourth proportional to 19,688.97, 29,500.03 and 11,881.38 is: 17,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.97 : 29,500.03 = 11,881.38 : x
  2. Step 2: Convert to fraction form
    19,688.97/29,500.03 = 11,881.38/x
  3. Step 3: Cross multiply
    19,688.97x = 29,500.03 × 11,881.38
  4. Step 4: Simplify right side
    19,688.97x = 350,501,066.44
  5. Step 5: Solve for x
    x = 350,501,066.44/19,688.97
  6. Step 6: Final answer
    x = 17,801.90

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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.