Home / 31,629.64-47,446.62-10,867.72

Finding the Fourth Proportional to 31,629.64, 47,446.62 and 10,867.72

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Solution

The fourth proportional to 31,629.64, 47,446.62 and 10,867.72 is: 16,302.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,629.64 : 47,446.62 = 10,867.72 : x
  2. Step 2: Convert to fraction form
    31,629.64/47,446.62 = 10,867.72/x
  3. Step 3: Cross multiply
    31,629.64x = 47,446.62 × 10,867.72
  4. Step 4: Simplify right side
    31,629.64x = 515,636,581.11
  5. Step 5: Solve for x
    x = 515,636,581.11/31,629.64
  6. Step 6: Final answer
    x = 16,302.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.