Home / 21,868.38-32,799.06-7,825.80

Finding the Fourth Proportional to 21,868.38, 32,799.06 and 7,825.80

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Solution

The fourth proportional to 21,868.38, 32,799.06 and 7,825.80 is: 11,737.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,868.38 : 32,799.06 = 7,825.80 : x
  2. Step 2: Convert to fraction form
    21,868.38/32,799.06 = 7,825.80/x
  3. Step 3: Cross multiply
    21,868.38x = 32,799.06 × 7,825.80
  4. Step 4: Simplify right side
    21,868.38x = 256,678,760.75
  5. Step 5: Solve for x
    x = 256,678,760.75/21,868.38
  6. Step 6: Final answer
    x = 11,737.44

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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.