Home / 23,149.40-31,943.77-13,078.94

Finding the Fourth Proportional to 23,149.40, 31,943.77 and 13,078.94

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Solution

The fourth proportional to 23,149.40, 31,943.77 and 13,078.94 is: 18,047.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,149.40 : 31,943.77 = 13,078.94 : x
  2. Step 2: Convert to fraction form
    23,149.40/31,943.77 = 13,078.94/x
  3. Step 3: Cross multiply
    23,149.40x = 31,943.77 × 13,078.94
  4. Step 4: Simplify right side
    23,149.40x = 417,790,458.79
  5. Step 5: Solve for x
    x = 417,790,458.79/23,149.40
  6. Step 6: Final answer
    x = 18,047.58

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1.5x scale

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.