Home / 28,219.72-38,936.90-16,282.30

Finding the Fourth Proportional to 28,219.72, 38,936.90 and 16,282.30

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Solution

The fourth proportional to 28,219.72, 38,936.90 and 16,282.30 is: 22,465.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.72 : 38,936.90 = 16,282.30 : x
  2. Step 2: Convert to fraction form
    28,219.72/38,936.90 = 16,282.30/x
  3. Step 3: Cross multiply
    28,219.72x = 38,936.90 × 16,282.30
  4. Step 4: Simplify right side
    28,219.72x = 633,982,286.87
  5. Step 5: Solve for x
    x = 633,982,286.87/28,219.72
  6. Step 6: Final answer
    x = 22,465.93

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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.