Home / 22,613.12-31,202.88-13,185.92

Finding the Fourth Proportional to 22,613.12, 31,202.88 and 13,185.92

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Solution

The fourth proportional to 22,613.12, 31,202.88 and 13,185.92 is: 18,194.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.12 : 31,202.88 = 13,185.92 : x
  2. Step 2: Convert to fraction form
    22,613.12/31,202.88 = 13,185.92/x
  3. Step 3: Cross multiply
    22,613.12x = 31,202.88 × 13,185.92
  4. Step 4: Simplify right side
    22,613.12x = 411,438,679.45
  5. Step 5: Solve for x
    x = 411,438,679.45/22,613.12
  6. Step 6: Final answer
    x = 18,194.69

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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.