Home / 23,121.42-31,907.43-13,049.34

Finding the Fourth Proportional to 23,121.42, 31,907.43 and 13,049.34

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Solution

The fourth proportional to 23,121.42, 31,907.43 and 13,049.34 is: 18,008.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,121.42 : 31,907.43 = 13,049.34 : x
  2. Step 2: Convert to fraction form
    23,121.42/31,907.43 = 13,049.34/x
  3. Step 3: Cross multiply
    23,121.42x = 31,907.43 × 13,049.34
  4. Step 4: Simplify right side
    23,121.42x = 416,370,902.60
  5. Step 5: Solve for x
    x = 416,370,902.60/23,121.42
  6. Step 6: Final answer
    x = 18,008.02

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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.