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Finding the Fourth Proportional to 22,655.25, 31,266.69 and 13,707.68

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Solution

The fourth proportional to 22,655.25, 31,266.69 and 13,707.68 is: 18,918.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,655.25 : 31,266.69 = 13,707.68 : x
  2. Step 2: Convert to fraction form
    22,655.25/31,266.69 = 13,707.68/x
  3. Step 3: Cross multiply
    22,655.25x = 31,266.69 × 13,707.68
  4. Step 4: Simplify right side
    22,655.25x = 428,593,859.35
  5. Step 5: Solve for x
    x = 428,593,859.35/22,655.25
  6. Step 6: Final answer
    x = 18,918.08

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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.