Home / 22,816.86-31,487.79-12,745.26

Finding the Fourth Proportional to 22,816.86, 31,487.79 and 12,745.26

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Solution

The fourth proportional to 22,816.86, 31,487.79 and 12,745.26 is: 17,588.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,816.86 : 31,487.79 = 12,745.26 : x
  2. Step 2: Convert to fraction form
    22,816.86/31,487.79 = 12,745.26/x
  3. Step 3: Cross multiply
    22,816.86x = 31,487.79 × 12,745.26
  4. Step 4: Simplify right side
    22,816.86x = 401,320,070.38
  5. Step 5: Solve for x
    x = 401,320,070.38/22,816.86
  6. Step 6: Final answer
    x = 17,588.75

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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.