Home / 22,338.92-30,813.54-13,721.34

Finding the Fourth Proportional to 22,338.92, 30,813.54 and 13,721.34

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Solution

The fourth proportional to 22,338.92, 30,813.54 and 13,721.34 is: 18,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,338.92 : 30,813.54 = 13,721.34 : x
  2. Step 2: Convert to fraction form
    22,338.92/30,813.54 = 13,721.34/x
  3. Step 3: Cross multiply
    22,338.92x = 30,813.54 × 13,721.34
  4. Step 4: Simplify right side
    22,338.92x = 422,803,058.94
  5. Step 5: Solve for x
    x = 422,803,058.94/22,338.92
  6. Step 6: Final answer
    x = 18,926.75

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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.