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Finding the Fourth Proportional to 22,288.80, 31,146 and 22,288.80

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Solution

The fourth proportional to 22,288.80, 31,146 and 22,288.80 is: 31,146

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,288.80 : 31,146 = 22,288.80 : x
  2. Step 2: Convert to fraction form
    22,288.80/31,146 = 22,288.80/x
  3. Step 3: Cross multiply
    22,288.80x = 31,146 × 22,288.80
  4. Step 4: Simplify right side
    22,288.80x = 694,206,964.80
  5. Step 5: Solve for x
    x = 694,206,964.80/22,288.80
  6. Step 6: Final answer
    x = 31,146

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.