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Finding the Fourth Proportional to 35,369, 48,811.62 and 20,465

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Solution

The fourth proportional to 35,369, 48,811.62 and 20,465 is: 28,243.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,369 : 48,811.62 = 20,465 : x
  2. Step 2: Convert to fraction form
    35,369/48,811.62 = 20,465/x
  3. Step 3: Cross multiply
    35,369x = 48,811.62 × 20,465
  4. Step 4: Simplify right side
    35,369x = 998,929,803.30
  5. Step 5: Solve for x
    x = 998,929,803.30/35,369
  6. Step 6: Final answer
    x = 28,243.09

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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.