Home / 23,160.57-31,961.52-12,550.21

Finding the Fourth Proportional to 23,160.57, 31,961.52 and 12,550.21

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Solution

The fourth proportional to 23,160.57, 31,961.52 and 12,550.21 is: 17,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,160.57 : 31,961.52 = 12,550.21 : x
  2. Step 2: Convert to fraction form
    23,160.57/31,961.52 = 12,550.21/x
  3. Step 3: Cross multiply
    23,160.57x = 31,961.52 × 12,550.21
  4. Step 4: Simplify right side
    23,160.57x = 401,123,708.02
  5. Step 5: Solve for x
    x = 401,123,708.02/23,160.57
  6. Step 6: Final answer
    x = 17,319.25

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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.