Home / 21,258.54-31,887.87-10,162.71

Finding the Fourth Proportional to 21,258.54, 31,887.87 and 10,162.71

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Solution

The fourth proportional to 21,258.54, 31,887.87 and 10,162.71 is: 15,244.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.54 : 31,887.87 = 10,162.71 : x
  2. Step 2: Convert to fraction form
    21,258.54/31,887.87 = 10,162.71/x
  3. Step 3: Cross multiply
    21,258.54x = 31,887.87 × 10,162.71
  4. Step 4: Simplify right side
    21,258.54x = 324,067,175.33
  5. Step 5: Solve for x
    x = 324,067,175.33/21,258.54
  6. Step 6: Final answer
    x = 15,244.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.