Home / 31,766.31-43,817.58-20,450.52

Finding the Fourth Proportional to 31,766.31, 43,817.58 and 20,450.52

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Solution

The fourth proportional to 31,766.31, 43,817.58 and 20,450.52 is: 28,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,766.31 : 43,817.58 = 20,450.52 : x
  2. Step 2: Convert to fraction form
    31,766.31/43,817.58 = 20,450.52/x
  3. Step 3: Cross multiply
    31,766.31x = 43,817.58 × 20,450.52
  4. Step 4: Simplify right side
    31,766.31x = 896,092,296.14
  5. Step 5: Solve for x
    x = 896,092,296.14/31,766.31
  6. Step 6: Final answer
    x = 28,208.89

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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.