Home / 23,160.47-31,961.55-12,550.11

Finding the Fourth Proportional to 23,160.47, 31,961.55 and 12,550.11

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Solution

The fourth proportional to 23,160.47, 31,961.55 and 12,550.11 is: 17,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,160.47 : 31,961.55 = 12,550.11 : x
  2. Step 2: Convert to fraction form
    23,160.47/31,961.55 = 12,550.11/x
  3. Step 3: Cross multiply
    23,160.47x = 31,961.55 × 12,550.11
  4. Step 4: Simplify right side
    23,160.47x = 401,120,968.27
  5. Step 5: Solve for x
    x = 401,120,968.27/23,160.47
  6. Step 6: Final answer
    x = 17,319.21

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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.