Home / 22,022.19-30,381.80-12,588.75

Finding the Fourth Proportional to 22,022.19, 30,381.80 and 12,588.75

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Solution

The fourth proportional to 22,022.19, 30,381.80 and 12,588.75 is: 17,367.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,022.19 : 30,381.80 = 12,588.75 : x
  2. Step 2: Convert to fraction form
    22,022.19/30,381.80 = 12,588.75/x
  3. Step 3: Cross multiply
    22,022.19x = 30,381.80 × 12,588.75
  4. Step 4: Simplify right side
    22,022.19x = 382,468,821.81
  5. Step 5: Solve for x
    x = 382,468,821.81/22,022.19
  6. Step 6: Final answer
    x = 17,367.43

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Half scale
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Double scale
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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.