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Finding the Fourth Proportional to 24,147.40, 36,148.20 and 21,231.40

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Solution

The fourth proportional to 24,147.40, 36,148.20 and 21,231.40 is: 31,783.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,147.40 : 36,148.20 = 21,231.40 : x
  2. Step 2: Convert to fraction form
    24,147.40/36,148.20 = 21,231.40/x
  3. Step 3: Cross multiply
    24,147.40x = 36,148.20 × 21,231.40
  4. Step 4: Simplify right side
    24,147.40x = 767,476,893.48
  5. Step 5: Solve for x
    x = 767,476,893.48/24,147.40
  6. Step 6: Final answer
    x = 31,783.00

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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.