Home / 31,284.38-43,172.46-17,137.28

Finding the Fourth Proportional to 31,284.38, 43,172.46 and 17,137.28

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Solution

The fourth proportional to 31,284.38, 43,172.46 and 17,137.28 is: 23,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,284.38 : 43,172.46 = 17,137.28 : x
  2. Step 2: Convert to fraction form
    31,284.38/43,172.46 = 17,137.28/x
  3. Step 3: Cross multiply
    31,284.38x = 43,172.46 × 17,137.28
  4. Step 4: Simplify right side
    31,284.38x = 739,858,535.31
  5. Step 5: Solve for x
    x = 739,858,535.31/31,284.38
  6. Step 6: Final answer
    x = 23,649.45

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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.