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Finding the Fourth Proportional to 22,139.21, 33,214.01 and 8,813.01

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Solution

The fourth proportional to 22,139.21, 33,214.01 and 8,813.01 is: 13,221.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,139.21 : 33,214.01 = 8,813.01 : x
  2. Step 2: Convert to fraction form
    22,139.21/33,214.01 = 8,813.01/x
  3. Step 3: Cross multiply
    22,139.21x = 33,214.01 × 8,813.01
  4. Step 4: Simplify right side
    22,139.21x = 292,715,358.21
  5. Step 5: Solve for x
    x = 292,715,358.21/22,139.21
  6. Step 6: Final answer
    x = 13,221.58

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1.5x scale

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.