Home / 22,623.88-31,217.44-12,933.20

Finding the Fourth Proportional to 22,623.88, 31,217.44 and 12,933.20

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Solution

The fourth proportional to 22,623.88, 31,217.44 and 12,933.20 is: 17,845.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,623.88 : 31,217.44 = 12,933.20 : x
  2. Step 2: Convert to fraction form
    22,623.88/31,217.44 = 12,933.20/x
  3. Step 3: Cross multiply
    22,623.88x = 31,217.44 × 12,933.20
  4. Step 4: Simplify right side
    22,623.88x = 403,741,395.01
  5. Step 5: Solve for x
    x = 403,741,395.01/22,623.88
  6. Step 6: Final answer
    x = 17,845.81

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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.