Home / 31,221.09-43,085.30-17,073.99

Finding the Fourth Proportional to 31,221.09, 43,085.30 and 17,073.99

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Solution

The fourth proportional to 31,221.09, 43,085.30 and 17,073.99 is: 23,562.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,221.09 : 43,085.30 = 17,073.99 : x
  2. Step 2: Convert to fraction form
    31,221.09/43,085.30 = 17,073.99/x
  3. Step 3: Cross multiply
    31,221.09x = 43,085.30 × 17,073.99
  4. Step 4: Simplify right side
    31,221.09x = 735,637,895.98
  5. Step 5: Solve for x
    x = 735,637,895.98/31,221.09
  6. Step 6: Final answer
    x = 23,562.21

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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.