Home / 31,841.30-43,840.62-28,888.85

Finding the Fourth Proportional to 31,841.30, 43,840.62 and 28,888.85

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Solution

The fourth proportional to 31,841.30, 43,840.62 and 28,888.85 is: 39,775.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,841.30 : 43,840.62 = 28,888.85 : x
  2. Step 2: Convert to fraction form
    31,841.30/43,840.62 = 28,888.85/x
  3. Step 3: Cross multiply
    31,841.30x = 43,840.62 × 28,888.85
  4. Step 4: Simplify right side
    31,841.30x = 1,266,504,875.88
  5. Step 5: Solve for x
    x = 1,266,504,875.88/31,841.30
  6. Step 6: Final answer
    x = 39,775.55

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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.