Home / 33,107.08-45,665.10-21,165.28

Finding the Fourth Proportional to 33,107.08, 45,665.10 and 21,165.28

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Solution

The fourth proportional to 33,107.08, 45,665.10 and 21,165.28 is: 29,193.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,107.08 : 45,665.10 = 21,165.28 : x
  2. Step 2: Convert to fraction form
    33,107.08/45,665.10 = 21,165.28/x
  3. Step 3: Cross multiply
    33,107.08x = 45,665.10 × 21,165.28
  4. Step 4: Simplify right side
    33,107.08x = 966,514,627.73
  5. Step 5: Solve for x
    x = 966,514,627.73/33,107.08
  6. Step 6: Final answer
    x = 29,193.59

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1.5x scale

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.