Home / 31,555.90-43,546.80-17,215.96

Finding the Fourth Proportional to 31,555.90, 43,546.80 and 17,215.96

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Solution

The fourth proportional to 31,555.90, 43,546.80 and 17,215.96 is: 23,757.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,555.90 : 43,546.80 = 17,215.96 : x
  2. Step 2: Convert to fraction form
    31,555.90/43,546.80 = 17,215.96/x
  3. Step 3: Cross multiply
    31,555.90x = 43,546.80 × 17,215.96
  4. Step 4: Simplify right side
    31,555.90x = 749,699,966.93
  5. Step 5: Solve for x
    x = 749,699,966.93/31,555.90
  6. Step 6: Final answer
    x = 23,757.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.