Home / 22,536.56-31,101.64-12,977.89

Finding the Fourth Proportional to 22,536.56, 31,101.64 and 12,977.89

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Solution

The fourth proportional to 22,536.56, 31,101.64 and 12,977.89 is: 17,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,536.56 : 31,101.64 = 12,977.89 : x
  2. Step 2: Convert to fraction form
    22,536.56/31,101.64 = 12,977.89/x
  3. Step 3: Cross multiply
    22,536.56x = 31,101.64 × 12,977.89
  4. Step 4: Simplify right side
    22,536.56x = 403,633,552.54
  5. Step 5: Solve for x
    x = 403,633,552.54/22,536.56
  6. Step 6: Final answer
    x = 17,910.16

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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.