Home / 31,609.30-43,622.10-18,180.55

Finding the Fourth Proportional to 31,609.30, 43,622.10 and 18,180.55

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Solution

The fourth proportional to 31,609.30, 43,622.10 and 18,180.55 is: 25,089.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,609.30 : 43,622.10 = 18,180.55 : x
  2. Step 2: Convert to fraction form
    31,609.30/43,622.10 = 18,180.55/x
  3. Step 3: Cross multiply
    31,609.30x = 43,622.10 × 18,180.55
  4. Step 4: Simplify right side
    31,609.30x = 793,073,770.16
  5. Step 5: Solve for x
    x = 793,073,770.16/31,609.30
  6. Step 6: Final answer
    x = 25,089.89

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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.