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Finding the Fourth Proportional to 24,416.40, 36,646.20 and 20,917.20

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Solution

The fourth proportional to 24,416.40, 36,646.20 and 20,917.20 is: 31,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,416.40 : 36,646.20 = 20,917.20 : x
  2. Step 2: Convert to fraction form
    24,416.40/36,646.20 = 20,917.20/x
  3. Step 3: Cross multiply
    24,416.40x = 36,646.20 × 20,917.20
  4. Step 4: Simplify right side
    24,416.40x = 766,535,894.64
  5. Step 5: Solve for x
    x = 766,535,894.64/24,416.40
  6. Step 6: Final answer
    x = 31,394.30

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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.