Home / 22,486.09-31,032.21-12,929.02

Finding the Fourth Proportional to 22,486.09, 31,032.21 and 12,929.02

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Solution

The fourth proportional to 22,486.09, 31,032.21 and 12,929.02 is: 17,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,486.09 : 31,032.21 = 12,929.02 : x
  2. Step 2: Convert to fraction form
    22,486.09/31,032.21 = 12,929.02/x
  3. Step 3: Cross multiply
    22,486.09x = 31,032.21 × 12,929.02
  4. Step 4: Simplify right side
    22,486.09x = 401,216,063.73
  5. Step 5: Solve for x
    x = 401,216,063.73/22,486.09
  6. Step 6: Final answer
    x = 17,842.86

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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.