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Finding the Fourth Proportional to 14,682.40, 22,023.60 and 13,613.20

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Solution

The fourth proportional to 14,682.40, 22,023.60 and 13,613.20 is: 20,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,682.40 : 22,023.60 = 13,613.20 : x
  2. Step 2: Convert to fraction form
    14,682.40/22,023.60 = 13,613.20/x
  3. Step 3: Cross multiply
    14,682.40x = 22,023.60 × 13,613.20
  4. Step 4: Simplify right side
    14,682.40x = 299,811,671.52
  5. Step 5: Solve for x
    x = 299,811,671.52/14,682.40
  6. Step 6: Final answer
    x = 20,419.80

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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.