Home / 23,121.54-31,906.62-13,560.12

Finding the Fourth Proportional to 23,121.54, 31,906.62 and 13,560.12

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Solution

The fourth proportional to 23,121.54, 31,906.62 and 13,560.12 is: 18,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,121.54 : 31,906.62 = 13,560.12 : x
  2. Step 2: Convert to fraction form
    23,121.54/31,906.62 = 13,560.12/x
  3. Step 3: Cross multiply
    23,121.54x = 31,906.62 × 13,560.12
  4. Step 4: Simplify right side
    23,121.54x = 432,657,595.99
  5. Step 5: Solve for x
    x = 432,657,595.99/23,121.54
  6. Step 6: Final answer
    x = 18,712.32

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Half scale
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Double scale
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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.