Home / 21,906.67-32,868.93-10,212.70

Finding the Fourth Proportional to 21,906.67, 32,868.93 and 10,212.70

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Solution

The fourth proportional to 21,906.67, 32,868.93 and 10,212.70 is: 15,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,906.67 : 32,868.93 = 10,212.70 : x
  2. Step 2: Convert to fraction form
    21,906.67/32,868.93 = 10,212.70/x
  3. Step 3: Cross multiply
    21,906.67x = 32,868.93 × 10,212.70
  4. Step 4: Simplify right side
    21,906.67x = 335,680,521.41
  5. Step 5: Solve for x
    x = 335,680,521.41/21,906.67
  6. Step 6: Final answer
    x = 15,323.21

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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.