Home / 31,284.75-43,173.10-17,137.56

Finding the Fourth Proportional to 31,284.75, 43,173.10 and 17,137.56

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Solution

The fourth proportional to 31,284.75, 43,173.10 and 17,137.56 is: 23,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,284.75 : 43,173.10 = 17,137.56 : x
  2. Step 2: Convert to fraction form
    31,284.75/43,173.10 = 17,137.56/x
  3. Step 3: Cross multiply
    31,284.75x = 43,173.10 × 17,137.56
  4. Step 4: Simplify right side
    31,284.75x = 739,881,591.64
  5. Step 5: Solve for x
    x = 739,881,591.64/31,284.75
  6. Step 6: Final answer
    x = 23,649.91

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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.