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Finding the Fourth Proportional to 22,303.00, 33,443.90 and 12,945.90

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Solution

The fourth proportional to 22,303.00, 33,443.90 and 12,945.90 is: 19,412.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,303.00 : 33,443.90 = 12,945.90 : x
  2. Step 2: Convert to fraction form
    22,303.00/33,443.90 = 12,945.90/x
  3. Step 3: Cross multiply
    22,303.00x = 33,443.90 × 12,945.90
  4. Step 4: Simplify right side
    22,303.00x = 432,961,418.39
  5. Step 5: Solve for x
    x = 432,961,418.39/22,303.00
  6. Step 6: Final answer
    x = 19,412.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.