Home / 31,667.58-43,699.77-18,239.22

Finding the Fourth Proportional to 31,667.58, 43,699.77 and 18,239.22

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Solution

The fourth proportional to 31,667.58, 43,699.77 and 18,239.22 is: 25,169.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,667.58 : 43,699.77 = 18,239.22 : x
  2. Step 2: Convert to fraction form
    31,667.58/43,699.77 = 18,239.22/x
  3. Step 3: Cross multiply
    31,667.58x = 43,699.77 × 18,239.22
  4. Step 4: Simplify right side
    31,667.58x = 797,049,718.98
  5. Step 5: Solve for x
    x = 797,049,718.98/31,667.58
  6. Step 6: Final answer
    x = 25,169.27

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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.