Home / 31,551.33-43,517.99-21,461.87

Finding the Fourth Proportional to 31,551.33, 43,517.99 and 21,461.87

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Solution

The fourth proportional to 31,551.33, 43,517.99 and 21,461.87 is: 29,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.33 : 43,517.99 = 21,461.87 : x
  2. Step 2: Convert to fraction form
    31,551.33/43,517.99 = 21,461.87/x
  3. Step 3: Cross multiply
    31,551.33x = 43,517.99 × 21,461.87
  4. Step 4: Simplify right side
    31,551.33x = 933,977,606.49
  5. Step 5: Solve for x
    x = 933,977,606.49/31,551.33
  6. Step 6: Final answer
    x = 29,601.84

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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.