Home / 23,143.50-31,938.20-12,533.15

Finding the Fourth Proportional to 23,143.50, 31,938.20 and 12,533.15

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Solution

The fourth proportional to 23,143.50, 31,938.20 and 12,533.15 is: 17,295.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,143.50 : 31,938.20 = 12,533.15 : x
  2. Step 2: Convert to fraction form
    23,143.50/31,938.20 = 12,533.15/x
  3. Step 3: Cross multiply
    23,143.50x = 31,938.20 × 12,533.15
  4. Step 4: Simplify right side
    23,143.50x = 400,286,028.97
  5. Step 5: Solve for x
    x = 400,286,028.97/23,143.50
  6. Step 6: Final answer
    x = 17,295.83

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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.