Home / 22,867.19-31,556.71-12,798

Finding the Fourth Proportional to 22,867.19, 31,556.71 and 12,798

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Solution

The fourth proportional to 22,867.19, 31,556.71 and 12,798 is: 17,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,867.19 : 31,556.71 = 12,798 : x
  2. Step 2: Convert to fraction form
    22,867.19/31,556.71 = 12,798/x
  3. Step 3: Cross multiply
    22,867.19x = 31,556.71 × 12,798
  4. Step 4: Simplify right side
    22,867.19x = 403,862,718.59
  5. Step 5: Solve for x
    x = 403,862,718.59/22,867.19
  6. Step 6: Final answer
    x = 17,661.23

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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.