Home / 31,169.09-43,012.68-17,021.99

Finding the Fourth Proportional to 31,169.09, 43,012.68 and 17,021.99

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Solution

The fourth proportional to 31,169.09, 43,012.68 and 17,021.99 is: 23,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,169.09 : 43,012.68 = 17,021.99 : x
  2. Step 2: Convert to fraction form
    31,169.09/43,012.68 = 17,021.99/x
  3. Step 3: Cross multiply
    31,169.09x = 43,012.68 × 17,021.99
  4. Step 4: Simplify right side
    31,169.09x = 732,161,408.83
  5. Step 5: Solve for x
    x = 732,161,408.83/31,169.09
  6. Step 6: Final answer
    x = 23,489.98

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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.