Home / 22,160.60-30,519.42-21,676.76

Finding the Fourth Proportional to 22,160.60, 30,519.42 and 21,676.76

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Solution

The fourth proportional to 22,160.60, 30,519.42 and 21,676.76 is: 29,853.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,160.60 : 30,519.42 = 21,676.76 : x
  2. Step 2: Convert to fraction form
    22,160.60/30,519.42 = 21,676.76/x
  3. Step 3: Cross multiply
    22,160.60x = 30,519.42 × 21,676.76
  4. Step 4: Simplify right side
    22,160.60x = 661,562,142.68
  5. Step 5: Solve for x
    x = 661,562,142.68/22,160.60
  6. Step 6: Final answer
    x = 29,853.08

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Half scale
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Double scale
Find fourth proportional to 22,161.60, 30,520.80 and 21,677.76
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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.