Home / 23,163.15-31,963.78-12,954.12

Finding the Fourth Proportional to 23,163.15, 31,963.78 and 12,954.12

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Solution

The fourth proportional to 23,163.15, 31,963.78 and 12,954.12 is: 17,875.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,163.15 : 31,963.78 = 12,954.12 : x
  2. Step 2: Convert to fraction form
    23,163.15/31,963.78 = 12,954.12/x
  3. Step 3: Cross multiply
    23,163.15x = 31,963.78 × 12,954.12
  4. Step 4: Simplify right side
    23,163.15x = 414,062,641.77
  5. Step 5: Solve for x
    x = 414,062,641.77/23,163.15
  6. Step 6: Final answer
    x = 17,875.92

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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.