Home / 22,394.16-30,900.68-13,439.76

Finding the Fourth Proportional to 22,394.16, 30,900.68 and 13,439.76

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Solution

The fourth proportional to 22,394.16, 30,900.68 and 13,439.76 is: 18,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,394.16 : 30,900.68 = 13,439.76 : x
  2. Step 2: Convert to fraction form
    22,394.16/30,900.68 = 13,439.76/x
  3. Step 3: Cross multiply
    22,394.16x = 30,900.68 × 13,439.76
  4. Step 4: Simplify right side
    22,394.16x = 415,297,723.04
  5. Step 5: Solve for x
    x = 415,297,723.04/22,394.16
  6. Step 6: Final answer
    x = 18,544.91

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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.