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Finding the Fourth Proportional to 24,421.60, 36,632.40 and 12,611.80

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Solution

The fourth proportional to 24,421.60, 36,632.40 and 12,611.80 is: 18,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,421.60 : 36,632.40 = 12,611.80 : x
  2. Step 2: Convert to fraction form
    24,421.60/36,632.40 = 12,611.80/x
  3. Step 3: Cross multiply
    24,421.60x = 36,632.40 × 12,611.80
  4. Step 4: Simplify right side
    24,421.60x = 462,000,502.32
  5. Step 5: Solve for x
    x = 462,000,502.32/24,421.60
  6. Step 6: Final answer
    x = 18,917.70

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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.