Home / 22,161.22-30,711.87-21,740.68

Finding the Fourth Proportional to 22,161.22, 30,711.87 and 21,740.68

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Solution

The fourth proportional to 22,161.22, 30,711.87 and 21,740.68 is: 30,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.22 : 30,711.87 = 21,740.68 : x
  2. Step 2: Convert to fraction form
    22,161.22/30,711.87 = 21,740.68/x
  3. Step 3: Cross multiply
    22,161.22x = 30,711.87 × 21,740.68
  4. Step 4: Simplify right side
    22,161.22x = 667,696,829.17
  5. Step 5: Solve for x
    x = 667,696,829.17/22,161.22
  6. Step 6: Final answer
    x = 30,129.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.