Home / 22,663.11-31,261.23-13,458.42

Finding the Fourth Proportional to 22,663.11, 31,261.23 and 13,458.42

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Solution

The fourth proportional to 22,663.11, 31,261.23 and 13,458.42 is: 18,564.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,663.11 : 31,261.23 = 13,458.42 : x
  2. Step 2: Convert to fraction form
    22,663.11/31,261.23 = 13,458.42/x
  3. Step 3: Cross multiply
    22,663.11x = 31,261.23 × 13,458.42
  4. Step 4: Simplify right side
    22,663.11x = 420,726,763.06
  5. Step 5: Solve for x
    x = 420,726,763.06/22,663.11
  6. Step 6: Final answer
    x = 18,564.39

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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.