Home / 31,284.20-43,172.82-17,137.06

Finding the Fourth Proportional to 31,284.20, 43,172.82 and 17,137.06

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Solution

The fourth proportional to 31,284.20, 43,172.82 and 17,137.06 is: 23,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,284.20 : 43,172.82 = 17,137.06 : x
  2. Step 2: Convert to fraction form
    31,284.20/43,172.82 = 17,137.06/x
  3. Step 3: Cross multiply
    31,284.20x = 43,172.82 × 17,137.06
  4. Step 4: Simplify right side
    31,284.20x = 739,855,206.71
  5. Step 5: Solve for x
    x = 739,855,206.71/31,284.20
  6. Step 6: Final answer
    x = 23,649.48

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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.