Home / 22,320.54-30,800.10-13,367.81

Finding the Fourth Proportional to 22,320.54, 30,800.10 and 13,367.81

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Solution

The fourth proportional to 22,320.54, 30,800.10 and 13,367.81 is: 18,446.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,320.54 : 30,800.10 = 13,367.81 : x
  2. Step 2: Convert to fraction form
    22,320.54/30,800.10 = 13,367.81/x
  3. Step 3: Cross multiply
    22,320.54x = 30,800.10 × 13,367.81
  4. Step 4: Simplify right side
    22,320.54x = 411,729,850.09
  5. Step 5: Solve for x
    x = 411,729,850.09/22,320.54
  6. Step 6: Final answer
    x = 18,446.23

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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.