Home / 22,817.36-31,488.48-12,745.76

Finding the Fourth Proportional to 22,817.36, 31,488.48 and 12,745.76

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Solution

The fourth proportional to 22,817.36, 31,488.48 and 12,745.76 is: 17,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,817.36 : 31,488.48 = 12,745.76 : x
  2. Step 2: Convert to fraction form
    22,817.36/31,488.48 = 12,745.76/x
  3. Step 3: Cross multiply
    22,817.36x = 31,488.48 × 12,745.76
  4. Step 4: Simplify right side
    22,817.36x = 401,344,608.84
  5. Step 5: Solve for x
    x = 401,344,608.84/22,817.36
  6. Step 6: Final answer
    x = 17,589.44

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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.