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Finding the Fourth Proportional to 21,768.66, 32,622.21 and 9,276.12

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Solution

The fourth proportional to 21,768.66, 32,622.21 and 9,276.12 is: 13,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,768.66 : 32,622.21 = 9,276.12 : x
  2. Step 2: Convert to fraction form
    21,768.66/32,622.21 = 9,276.12/x
  3. Step 3: Cross multiply
    21,768.66x = 32,622.21 × 9,276.12
  4. Step 4: Simplify right side
    21,768.66x = 302,607,534.63
  5. Step 5: Solve for x
    x = 302,607,534.63/21,768.66
  6. Step 6: Final answer
    x = 13,901.06

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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.