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Finding the Fourth Proportional to 21,343.70, 32,015.55 and 7,494.10

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Solution

The fourth proportional to 21,343.70, 32,015.55 and 7,494.10 is: 11,241.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.70 : 32,015.55 = 7,494.10 : x
  2. Step 2: Convert to fraction form
    21,343.70/32,015.55 = 7,494.10/x
  3. Step 3: Cross multiply
    21,343.70x = 32,015.55 × 7,494.10
  4. Step 4: Simplify right side
    21,343.70x = 239,927,733.26
  5. Step 5: Solve for x
    x = 239,927,733.26/21,343.70
  6. Step 6: Final answer
    x = 11,241.15

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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.