Home / 22,676.10-31,288.19-13,721.82

Finding the Fourth Proportional to 22,676.10, 31,288.19 and 13,721.82

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Solution

The fourth proportional to 22,676.10, 31,288.19 and 13,721.82 is: 18,933.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,676.10 : 31,288.19 = 13,721.82 : x
  2. Step 2: Convert to fraction form
    22,676.10/31,288.19 = 13,721.82/x
  3. Step 3: Cross multiply
    22,676.10x = 31,288.19 × 13,721.82
  4. Step 4: Simplify right side
    22,676.10x = 429,330,842.70
  5. Step 5: Solve for x
    x = 429,330,842.70/22,676.10
  6. Step 6: Final answer
    x = 18,933.19

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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.