Home / 21,197.73-29,246.94-13,248.03

Finding the Fourth Proportional to 21,197.73, 29,246.94 and 13,248.03

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Solution

The fourth proportional to 21,197.73, 29,246.94 and 13,248.03 is: 18,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.73 : 29,246.94 = 13,248.03 : x
  2. Step 2: Convert to fraction form
    21,197.73/29,246.94 = 13,248.03/x
  3. Step 3: Cross multiply
    21,197.73x = 29,246.94 × 13,248.03
  4. Step 4: Simplify right side
    21,197.73x = 387,464,338.53
  5. Step 5: Solve for x
    x = 387,464,338.53/21,197.73
  6. Step 6: Final answer
    x = 18,278.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.