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Finding the Fourth Proportional to 21,134.17, 31,703.06 and 5,551.75

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Solution

The fourth proportional to 21,134.17, 31,703.06 and 5,551.75 is: 8,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.17 : 31,703.06 = 5,551.75 : x
  2. Step 2: Convert to fraction form
    21,134.17/31,703.06 = 5,551.75/x
  3. Step 3: Cross multiply
    21,134.17x = 31,703.06 × 5,551.75
  4. Step 4: Simplify right side
    21,134.17x = 176,007,463.36
  5. Step 5: Solve for x
    x = 176,007,463.36/21,134.17
  6. Step 6: Final answer
    x = 8,328.10

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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.