Home / 22,766.49-31,420.84-13,338.81

Finding the Fourth Proportional to 22,766.49, 31,420.84 and 13,338.81

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Solution

The fourth proportional to 22,766.49, 31,420.84 and 13,338.81 is: 18,409.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,766.49 : 31,420.84 = 13,338.81 : x
  2. Step 2: Convert to fraction form
    22,766.49/31,420.84 = 13,338.81/x
  3. Step 3: Cross multiply
    22,766.49x = 31,420.84 × 13,338.81
  4. Step 4: Simplify right side
    22,766.49x = 419,116,726.70
  5. Step 5: Solve for x
    x = 419,116,726.70/22,766.49
  6. Step 6: Final answer
    x = 18,409.37

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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.