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Finding the Fourth Proportional to 39,449.99, 54,404.92 and 30,837.31

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Solution

The fourth proportional to 39,449.99, 54,404.92 and 30,837.31 is: 42,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,449.99 : 54,404.92 = 30,837.31 : x
  2. Step 2: Convert to fraction form
    39,449.99/54,404.92 = 30,837.31/x
  3. Step 3: Cross multiply
    39,449.99x = 54,404.92 × 30,837.31
  4. Step 4: Simplify right side
    39,449.99x = 1,677,701,170.46
  5. Step 5: Solve for x
    x = 1,677,701,170.46/39,449.99
  6. Step 6: Final answer
    x = 42,527.30

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1.5x scale

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.