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Finding the Fourth Proportional to 24,280.80, 36,421.20 and 13,893.60

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Solution

The fourth proportional to 24,280.80, 36,421.20 and 13,893.60 is: 20,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,280.80 : 36,421.20 = 13,893.60 : x
  2. Step 2: Convert to fraction form
    24,280.80/36,421.20 = 13,893.60/x
  3. Step 3: Cross multiply
    24,280.80x = 36,421.20 × 13,893.60
  4. Step 4: Simplify right side
    24,280.80x = 506,021,584.32
  5. Step 5: Solve for x
    x = 506,021,584.32/24,280.80
  6. Step 6: Final answer
    x = 20,840.40

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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.