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Finding the Fourth Proportional to 29,492.80, 44,239.20 and 20,161.60

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Solution

The fourth proportional to 29,492.80, 44,239.20 and 20,161.60 is: 30,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,492.80 : 44,239.20 = 20,161.60 : x
  2. Step 2: Convert to fraction form
    29,492.80/44,239.20 = 20,161.60/x
  3. Step 3: Cross multiply
    29,492.80x = 44,239.20 × 20,161.60
  4. Step 4: Simplify right side
    29,492.80x = 891,933,054.72
  5. Step 5: Solve for x
    x = 891,933,054.72/29,492.80
  6. Step 6: Final answer
    x = 30,242.40

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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.