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Finding the Fourth Proportional to 35,579.82, 53,400.42 and 19,800.63

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Solution

The fourth proportional to 35,579.82, 53,400.42 and 19,800.63 is: 29,718.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,579.82 : 53,400.42 = 19,800.63 : x
  2. Step 2: Convert to fraction form
    35,579.82/53,400.42 = 19,800.63/x
  3. Step 3: Cross multiply
    35,579.82x = 53,400.42 × 19,800.63
  4. Step 4: Simplify right side
    35,579.82x = 1,057,361,958.26
  5. Step 5: Solve for x
    x = 1,057,361,958.26/35,579.82
  6. Step 6: Final answer
    x = 29,718.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.