Home / 20,232.28-27,915.84-12,272.92

Finding the Fourth Proportional to 20,232.28, 27,915.84 and 12,272.92

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Solution

The fourth proportional to 20,232.28, 27,915.84 and 12,272.92 is: 16,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.28 : 27,915.84 = 12,272.92 : x
  2. Step 2: Convert to fraction form
    20,232.28/27,915.84 = 12,272.92/x
  3. Step 3: Cross multiply
    20,232.28x = 27,915.84 × 12,272.92
  4. Step 4: Simplify right side
    20,232.28x = 342,608,871.05
  5. Step 5: Solve for x
    x = 342,608,871.05/20,232.28
  6. Step 6: Final answer
    x = 16,933.77

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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.