Home / 22,778.05-31,436.45-13,346.62

Finding the Fourth Proportional to 22,778.05, 31,436.45 and 13,346.62

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Solution

The fourth proportional to 22,778.05, 31,436.45 and 13,346.62 is: 18,419.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,778.05 : 31,436.45 = 13,346.62 : x
  2. Step 2: Convert to fraction form
    22,778.05/31,436.45 = 13,346.62/x
  3. Step 3: Cross multiply
    22,778.05x = 31,436.45 × 13,346.62
  4. Step 4: Simplify right side
    22,778.05x = 419,570,352.30
  5. Step 5: Solve for x
    x = 419,570,352.30/22,778.05
  6. Step 6: Final answer
    x = 18,419.94

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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.