Home / 21,974.69-30,325.19-11,903.15

Finding the Fourth Proportional to 21,974.69, 30,325.19 and 11,903.15

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Solution

The fourth proportional to 21,974.69, 30,325.19 and 11,903.15 is: 16,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.69 : 30,325.19 = 11,903.15 : x
  2. Step 2: Convert to fraction form
    21,974.69/30,325.19 = 11,903.15/x
  3. Step 3: Cross multiply
    21,974.69x = 30,325.19 × 11,903.15
  4. Step 4: Simplify right side
    21,974.69x = 360,965,301.65
  5. Step 5: Solve for x
    x = 360,965,301.65/21,974.69
  6. Step 6: Final answer
    x = 16,426.41

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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.