Home / 31,459.87-43,414.41-17,312.68

Finding the Fourth Proportional to 31,459.87, 43,414.41 and 17,312.68

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Solution

The fourth proportional to 31,459.87, 43,414.41 and 17,312.68 is: 23,891.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,459.87 : 43,414.41 = 17,312.68 : x
  2. Step 2: Convert to fraction form
    31,459.87/43,414.41 = 17,312.68/x
  3. Step 3: Cross multiply
    31,459.87x = 43,414.41 × 17,312.68
  4. Step 4: Simplify right side
    31,459.87x = 751,619,787.72
  5. Step 5: Solve for x
    x = 751,619,787.72/31,459.87
  6. Step 6: Final answer
    x = 23,891.38

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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.