Home / 31,613.22-43,623.36-18,188.82

Finding the Fourth Proportional to 31,613.22, 43,623.36 and 18,188.82

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Solution

The fourth proportional to 31,613.22, 43,623.36 and 18,188.82 is: 25,098.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,613.22 : 43,623.36 = 18,188.82 : x
  2. Step 2: Convert to fraction form
    31,613.22/43,623.36 = 18,188.82/x
  3. Step 3: Cross multiply
    31,613.22x = 43,623.36 × 18,188.82
  4. Step 4: Simplify right side
    31,613.22x = 793,457,442.84
  5. Step 5: Solve for x
    x = 793,457,442.84/31,613.22
  6. Step 6: Final answer
    x = 25,098.91

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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.