Home / 31,090.60-46,618.80-21,241

Finding the Fourth Proportional to 31,090.60, 46,618.80 and 21,241

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Solution

The fourth proportional to 31,090.60, 46,618.80 and 21,241 is: 31,849.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,090.60 : 46,618.80 = 21,241 : x
  2. Step 2: Convert to fraction form
    31,090.60/46,618.80 = 21,241/x
  3. Step 3: Cross multiply
    31,090.60x = 46,618.80 × 21,241
  4. Step 4: Simplify right side
    31,090.60x = 990,229,930.80
  5. Step 5: Solve for x
    x = 990,229,930.80/31,090.60
  6. Step 6: Final answer
    x = 31,849.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.