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Finding the Fourth Proportional to 22,686.58, 31,302.86 and 13,253.32

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Solution

The fourth proportional to 22,686.58, 31,302.86 and 13,253.32 is: 18,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.58 : 31,302.86 = 13,253.32 : x
  2. Step 2: Convert to fraction form
    22,686.58/31,302.86 = 13,253.32/x
  3. Step 3: Cross multiply
    22,686.58x = 31,302.86 × 13,253.32
  4. Step 4: Simplify right side
    22,686.58x = 414,866,775.37
  5. Step 5: Solve for x
    x = 414,866,775.37/22,686.58
  6. Step 6: Final answer
    x = 18,286.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.