Home / 22,162.61-30,550.47-15,770.09

Finding the Fourth Proportional to 22,162.61, 30,550.47 and 15,770.09

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Solution

The fourth proportional to 22,162.61, 30,550.47 and 15,770.09 is: 21,738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,162.61 : 30,550.47 = 15,770.09 : x
  2. Step 2: Convert to fraction form
    22,162.61/30,550.47 = 15,770.09/x
  3. Step 3: Cross multiply
    22,162.61x = 30,550.47 × 15,770.09
  4. Step 4: Simplify right side
    22,162.61x = 481,783,678.68
  5. Step 5: Solve for x
    x = 481,783,678.68/22,162.61
  6. Step 6: Final answer
    x = 21,738.58

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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.