Home / 22,615.80-31,209.26-13,183.75

Finding the Fourth Proportional to 22,615.80, 31,209.26 and 13,183.75

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Solution

The fourth proportional to 22,615.80, 31,209.26 and 13,183.75 is: 18,193.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.80 : 31,209.26 = 13,183.75 : x
  2. Step 2: Convert to fraction form
    22,615.80/31,209.26 = 13,183.75/x
  3. Step 3: Cross multiply
    22,615.80x = 31,209.26 × 13,183.75
  4. Step 4: Simplify right side
    22,615.80x = 411,455,081.53
  5. Step 5: Solve for x
    x = 411,455,081.53/22,615.80
  6. Step 6: Final answer
    x = 18,193.26

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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.