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Finding the Fourth Proportional to 22,066, 30,451.08 and 12,130

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Solution

The fourth proportional to 22,066, 30,451.08 and 12,130 is: 16,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,066 : 30,451.08 = 12,130 : x
  2. Step 2: Convert to fraction form
    22,066/30,451.08 = 12,130/x
  3. Step 3: Cross multiply
    22,066x = 30,451.08 × 12,130
  4. Step 4: Simplify right side
    22,066x = 369,371,600.40
  5. Step 5: Solve for x
    x = 369,371,600.40/22,066
  6. Step 6: Final answer
    x = 16,739.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.