Home / 21,905.67-32,867.43-10,211.70

Finding the Fourth Proportional to 21,905.67, 32,867.43 and 10,211.70

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Solution

The fourth proportional to 21,905.67, 32,867.43 and 10,211.70 is: 15,321.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.67 : 32,867.43 = 10,211.70 : x
  2. Step 2: Convert to fraction form
    21,905.67/32,867.43 = 10,211.70/x
  3. Step 3: Cross multiply
    21,905.67x = 32,867.43 × 10,211.70
  4. Step 4: Simplify right side
    21,905.67x = 335,632,334.93
  5. Step 5: Solve for x
    x = 335,632,334.93/21,905.67
  6. Step 6: Final answer
    x = 15,321.71

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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.