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Finding the Fourth Proportional to 19,437.84, 29,127.60 and 11,637.54

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Solution

The fourth proportional to 19,437.84, 29,127.60 and 11,637.54 is: 17,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,437.84 : 29,127.60 = 11,637.54 : x
  2. Step 2: Convert to fraction form
    19,437.84/29,127.60 = 11,637.54/x
  3. Step 3: Cross multiply
    19,437.84x = 29,127.60 × 11,637.54
  4. Step 4: Simplify right side
    19,437.84x = 338,973,610.10
  5. Step 5: Solve for x
    x = 338,973,610.10/19,437.84
  6. Step 6: Final answer
    x = 17,438.85

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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.