Home / 22,142.76-30,555.62-12,704.68

Finding the Fourth Proportional to 22,142.76, 30,555.62 and 12,704.68

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Solution

The fourth proportional to 22,142.76, 30,555.62 and 12,704.68 is: 17,531.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,142.76 : 30,555.62 = 12,704.68 : x
  2. Step 2: Convert to fraction form
    22,142.76/30,555.62 = 12,704.68/x
  3. Step 3: Cross multiply
    22,142.76x = 30,555.62 × 12,704.68
  4. Step 4: Simplify right side
    22,142.76x = 388,199,374.30
  5. Step 5: Solve for x
    x = 388,199,374.30/22,142.76
  6. Step 6: Final answer
    x = 17,531.66

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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.