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Finding the Fourth Proportional to 22,247.48, 30,712.64 and 12,814.22

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Solution

The fourth proportional to 22,247.48, 30,712.64 and 12,814.22 is: 17,690.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,247.48 : 30,712.64 = 12,814.22 : x
  2. Step 2: Convert to fraction form
    22,247.48/30,712.64 = 12,814.22/x
  3. Step 3: Cross multiply
    22,247.48x = 30,712.64 × 12,814.22
  4. Step 4: Simplify right side
    22,247.48x = 393,558,525.74
  5. Step 5: Solve for x
    x = 393,558,525.74/22,247.48
  6. Step 6: Final answer
    x = 17,690.03

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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.