Home / 22,555.54-31,121.04-13,608.28

Finding the Fourth Proportional to 22,555.54, 31,121.04 and 13,608.28

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Solution

The fourth proportional to 22,555.54, 31,121.04 and 13,608.28 is: 18,776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,555.54 : 31,121.04 = 13,608.28 : x
  2. Step 2: Convert to fraction form
    22,555.54/31,121.04 = 13,608.28/x
  3. Step 3: Cross multiply
    22,555.54x = 31,121.04 × 13,608.28
  4. Step 4: Simplify right side
    22,555.54x = 423,503,826.21
  5. Step 5: Solve for x
    x = 423,503,826.21/22,555.54
  6. Step 6: Final answer
    x = 18,776.04

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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.