Home / 31,132.52-46,689.21-8,939.94

Finding the Fourth Proportional to 31,132.52, 46,689.21 and 8,939.94

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Solution

The fourth proportional to 31,132.52, 46,689.21 and 8,939.94 is: 13,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,132.52 : 46,689.21 = 8,939.94 : x
  2. Step 2: Convert to fraction form
    31,132.52/46,689.21 = 8,939.94/x
  3. Step 3: Cross multiply
    31,132.52x = 46,689.21 × 8,939.94
  4. Step 4: Simplify right side
    31,132.52x = 417,398,736.05
  5. Step 5: Solve for x
    x = 417,398,736.05/31,132.52
  6. Step 6: Final answer
    x = 13,407.16

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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.