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Finding the Fourth Proportional to 18,438.58, 27,655.50 and 5,957.31

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Solution

The fourth proportional to 18,438.58, 27,655.50 and 5,957.31 is: 8,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.58 : 27,655.50 = 5,957.31 : x
  2. Step 2: Convert to fraction form
    18,438.58/27,655.50 = 5,957.31/x
  3. Step 3: Cross multiply
    18,438.58x = 27,655.50 × 5,957.31
  4. Step 4: Simplify right side
    18,438.58x = 164,752,386.71
  5. Step 5: Solve for x
    x = 164,752,386.71/18,438.58
  6. Step 6: Final answer
    x = 8,935.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.