Home / 22,992.14-31,729.13-13,438.60

Finding the Fourth Proportional to 22,992.14, 31,729.13 and 13,438.60

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Solution

The fourth proportional to 22,992.14, 31,729.13 and 13,438.60 is: 18,545.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,992.14 : 31,729.13 = 13,438.60 : x
  2. Step 2: Convert to fraction form
    22,992.14/31,729.13 = 13,438.60/x
  3. Step 3: Cross multiply
    22,992.14x = 31,729.13 × 13,438.60
  4. Step 4: Simplify right side
    22,992.14x = 426,395,086.42
  5. Step 5: Solve for x
    x = 426,395,086.42/22,992.14
  6. Step 6: Final answer
    x = 18,545.25

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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.