Home / 23,171.32-31,976.40-12,560.86

Finding the Fourth Proportional to 23,171.32, 31,976.40 and 12,560.86

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Solution

The fourth proportional to 23,171.32, 31,976.40 and 12,560.86 is: 17,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,171.32 : 31,976.40 = 12,560.86 : x
  2. Step 2: Convert to fraction form
    23,171.32/31,976.40 = 12,560.86/x
  3. Step 3: Cross multiply
    23,171.32x = 31,976.40 × 12,560.86
  4. Step 4: Simplify right side
    23,171.32x = 401,651,083.70
  5. Step 5: Solve for x
    x = 401,651,083.70/23,171.32
  6. Step 6: Final answer
    x = 17,333.98

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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.