Home / 22,285.80-33,428.70-21,301.65

Finding the Fourth Proportional to 22,285.80, 33,428.70 and 21,301.65

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Solution

The fourth proportional to 22,285.80, 33,428.70 and 21,301.65 is: 31,952.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,285.80 : 33,428.70 = 21,301.65 : x
  2. Step 2: Convert to fraction form
    22,285.80/33,428.70 = 21,301.65/x
  3. Step 3: Cross multiply
    22,285.80x = 33,428.70 × 21,301.65
  4. Step 4: Simplify right side
    22,285.80x = 712,086,467.36
  5. Step 5: Solve for x
    x = 712,086,467.36/22,285.80
  6. Step 6: Final answer
    x = 31,952.48

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Half scale
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Double scale
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Similar ratio
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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.