Home / 30,516.12-42,107.38-17,087.94

Finding the Fourth Proportional to 30,516.12, 42,107.38 and 17,087.94

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Solution

The fourth proportional to 30,516.12, 42,107.38 and 17,087.94 is: 23,578.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.12 : 42,107.38 = 17,087.94 : x
  2. Step 2: Convert to fraction form
    30,516.12/42,107.38 = 17,087.94/x
  3. Step 3: Cross multiply
    30,516.12x = 42,107.38 × 17,087.94
  4. Step 4: Simplify right side
    30,516.12x = 719,528,383.00
  5. Step 5: Solve for x
    x = 719,528,383.00/30,516.12
  6. Step 6: Final answer
    x = 23,578.63

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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.