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Finding the Fourth Proportional to 35,485, 48,969.66 and 21,338.08

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Solution

The fourth proportional to 35,485, 48,969.66 and 21,338.08 is: 29,446.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,485 : 48,969.66 = 21,338.08 : x
  2. Step 2: Convert to fraction form
    35,485/48,969.66 = 21,338.08/x
  3. Step 3: Cross multiply
    35,485x = 48,969.66 × 21,338.08
  4. Step 4: Simplify right side
    35,485x = 1,044,918,522.65
  5. Step 5: Solve for x
    x = 1,044,918,522.65/35,485
  6. Step 6: Final answer
    x = 29,446.77

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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.