Home / 31,253.53-43,128.21-17,103.64

Finding the Fourth Proportional to 31,253.53, 43,128.21 and 17,103.64

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Solution

The fourth proportional to 31,253.53, 43,128.21 and 17,103.64 is: 23,602.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,253.53 : 43,128.21 = 17,103.64 : x
  2. Step 2: Convert to fraction form
    31,253.53/43,128.21 = 17,103.64/x
  3. Step 3: Cross multiply
    31,253.53x = 43,128.21 × 17,103.64
  4. Step 4: Simplify right side
    31,253.53x = 737,649,377.68
  5. Step 5: Solve for x
    x = 737,649,377.68/31,253.53
  6. Step 6: Final answer
    x = 23,602.11

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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.