Home / 22,745.72-31,388.67-12,673.95

Finding the Fourth Proportional to 22,745.72, 31,388.67 and 12,673.95

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Solution

The fourth proportional to 22,745.72, 31,388.67 and 12,673.95 is: 17,489.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.72 : 31,388.67 = 12,673.95 : x
  2. Step 2: Convert to fraction form
    22,745.72/31,388.67 = 12,673.95/x
  3. Step 3: Cross multiply
    22,745.72x = 31,388.67 × 12,673.95
  4. Step 4: Simplify right side
    22,745.72x = 397,818,458.19
  5. Step 5: Solve for x
    x = 397,818,458.19/22,745.72
  6. Step 6: Final answer
    x = 17,489.81

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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.