Home / 31,528.56-43,511.64-18,102

Finding the Fourth Proportional to 31,528.56, 43,511.64 and 18,102

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Solution

The fourth proportional to 31,528.56, 43,511.64 and 18,102 is: 24,982.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.56 : 43,511.64 = 18,102 : x
  2. Step 2: Convert to fraction form
    31,528.56/43,511.64 = 18,102/x
  3. Step 3: Cross multiply
    31,528.56x = 43,511.64 × 18,102
  4. Step 4: Simplify right side
    31,528.56x = 787,647,707.28
  5. Step 5: Solve for x
    x = 787,647,707.28/31,528.56
  6. Step 6: Final answer
    x = 24,982.04

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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.