Home / 19,428.73-29,139.54-5,197.39

Finding the Fourth Proportional to 19,428.73, 29,139.54 and 5,197.39

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Solution

The fourth proportional to 19,428.73, 29,139.54 and 5,197.39 is: 7,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.73 : 29,139.54 = 5,197.39 : x
  2. Step 2: Convert to fraction form
    19,428.73/29,139.54 = 5,197.39/x
  3. Step 3: Cross multiply
    19,428.73x = 29,139.54 × 5,197.39
  4. Step 4: Simplify right side
    19,428.73x = 151,449,553.80
  5. Step 5: Solve for x
    x = 151,449,553.80/19,428.73
  6. Step 6: Final answer
    x = 7,795.13

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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.