Home / 22,399.04-30,920.22-15,942.84

Finding the Fourth Proportional to 22,399.04, 30,920.22 and 15,942.84

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Solution

The fourth proportional to 22,399.04, 30,920.22 and 15,942.84 is: 22,007.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,399.04 : 30,920.22 = 15,942.84 : x
  2. Step 2: Convert to fraction form
    22,399.04/30,920.22 = 15,942.84/x
  3. Step 3: Cross multiply
    22,399.04x = 30,920.22 × 15,942.84
  4. Step 4: Simplify right side
    22,399.04x = 492,956,120.22
  5. Step 5: Solve for x
    x = 492,956,120.22/22,399.04
  6. Step 6: Final answer
    x = 22,007.91

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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.