Home / 23,160.66-31,961.40-12,550.20

Finding the Fourth Proportional to 23,160.66, 31,961.40 and 12,550.20

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Solution

The fourth proportional to 23,160.66, 31,961.40 and 12,550.20 is: 17,319.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,160.66 : 31,961.40 = 12,550.20 : x
  2. Step 2: Convert to fraction form
    23,160.66/31,961.40 = 12,550.20/x
  3. Step 3: Cross multiply
    23,160.66x = 31,961.40 × 12,550.20
  4. Step 4: Simplify right side
    23,160.66x = 401,121,962.28
  5. Step 5: Solve for x
    x = 401,121,962.28/23,160.66
  6. Step 6: Final answer
    x = 17,319.11

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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.