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Finding the Fourth Proportional to 22,398.39, 30,907.98 and 12,967.56

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Solution

The fourth proportional to 22,398.39, 30,907.98 and 12,967.56 is: 17,894.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,398.39 : 30,907.98 = 12,967.56 : x
  2. Step 2: Convert to fraction form
    22,398.39/30,907.98 = 12,967.56/x
  3. Step 3: Cross multiply
    22,398.39x = 30,907.98 × 12,967.56
  4. Step 4: Simplify right side
    22,398.39x = 400,801,085.13
  5. Step 5: Solve for x
    x = 400,801,085.13/22,398.39
  6. Step 6: Final answer
    x = 17,894.19

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