Home / 22,171.81-33,256.78-10,321.51

Finding the Fourth Proportional to 22,171.81, 33,256.78 and 10,321.51

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Solution

The fourth proportional to 22,171.81, 33,256.78 and 10,321.51 is: 15,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,171.81 : 33,256.78 = 10,321.51 : x
  2. Step 2: Convert to fraction form
    22,171.81/33,256.78 = 10,321.51/x
  3. Step 3: Cross multiply
    22,171.81x = 33,256.78 × 10,321.51
  4. Step 4: Simplify right side
    22,171.81x = 343,260,000.45
  5. Step 5: Solve for x
    x = 343,260,000.45/22,171.81
  6. Step 6: Final answer
    x = 15,481.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.