Home / 31,675.73-43,770.33-30,138.53

Finding the Fourth Proportional to 31,675.73, 43,770.33 and 30,138.53

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Solution

The fourth proportional to 31,675.73, 43,770.33 and 30,138.53 is: 41,646.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,675.73 : 43,770.33 = 30,138.53 : x
  2. Step 2: Convert to fraction form
    31,675.73/43,770.33 = 30,138.53/x
  3. Step 3: Cross multiply
    31,675.73x = 43,770.33 × 30,138.53
  4. Step 4: Simplify right side
    31,675.73x = 1,319,173,184.96
  5. Step 5: Solve for x
    x = 1,319,173,184.96/31,675.73
  6. Step 6: Final answer
    x = 41,646.19

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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.