Home / 31,207.85-43,063.75-17,778.31

Finding the Fourth Proportional to 31,207.85, 43,063.75 and 17,778.31

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Solution

The fourth proportional to 31,207.85, 43,063.75 and 17,778.31 is: 24,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,207.85 : 43,063.75 = 17,778.31 : x
  2. Step 2: Convert to fraction form
    31,207.85/43,063.75 = 17,778.31/x
  3. Step 3: Cross multiply
    31,207.85x = 43,063.75 × 17,778.31
  4. Step 4: Simplify right side
    31,207.85x = 765,600,393.05
  5. Step 5: Solve for x
    x = 765,600,393.05/31,207.85
  6. Step 6: Final answer
    x = 24,532.30

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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.