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Finding the Fourth Proportional to 35,336, 48,772.48 and 20,440.64

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Solution

The fourth proportional to 35,336, 48,772.48 and 20,440.64 is: 28,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,336 : 48,772.48 = 20,440.64 : x
  2. Step 2: Convert to fraction form
    35,336/48,772.48 = 20,440.64/x
  3. Step 3: Cross multiply
    35,336x = 48,772.48 × 20,440.64
  4. Step 4: Simplify right side
    35,336x = 996,940,705.59
  5. Step 5: Solve for x
    x = 996,940,705.59/35,336
  6. Step 6: Final answer
    x = 28,213.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.