Home / 31,033.26-42,825.96-16,886.07

Finding the Fourth Proportional to 31,033.26, 42,825.96 and 16,886.07

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Solution

The fourth proportional to 31,033.26, 42,825.96 and 16,886.07 is: 23,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,033.26 : 42,825.96 = 16,886.07 : x
  2. Step 2: Convert to fraction form
    31,033.26/42,825.96 = 16,886.07/x
  3. Step 3: Cross multiply
    31,033.26x = 42,825.96 × 16,886.07
  4. Step 4: Simplify right side
    31,033.26x = 723,162,158.38
  5. Step 5: Solve for x
    x = 723,162,158.38/31,033.26
  6. Step 6: Final answer
    x = 23,302.81

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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.