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Finding the Fourth Proportional to 22,710.80, 34,066.20 and 8,859.80

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Solution

The fourth proportional to 22,710.80, 34,066.20 and 8,859.80 is: 13,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,710.80 : 34,066.20 = 8,859.80 : x
  2. Step 2: Convert to fraction form
    22,710.80/34,066.20 = 8,859.80/x
  3. Step 3: Cross multiply
    22,710.80x = 34,066.20 × 8,859.80
  4. Step 4: Simplify right side
    22,710.80x = 301,819,718.76
  5. Step 5: Solve for x
    x = 301,819,718.76/22,710.80
  6. Step 6: Final answer
    x = 13,289.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.