Home / 31,255.21-43,132.21-17,108.13

Finding the Fourth Proportional to 31,255.21, 43,132.21 and 17,108.13

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Solution

The fourth proportional to 31,255.21, 43,132.21 and 17,108.13 is: 23,609.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,255.21 : 43,132.21 = 17,108.13 : x
  2. Step 2: Convert to fraction form
    31,255.21/43,132.21 = 17,108.13/x
  3. Step 3: Cross multiply
    31,255.21x = 43,132.21 × 17,108.13
  4. Step 4: Simplify right side
    31,255.21x = 737,911,455.87
  5. Step 5: Solve for x
    x = 737,911,455.87/31,255.21
  6. Step 6: Final answer
    x = 23,609.23

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Double scale
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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.