Home / 30,732.23-42,412.05-18,791.82

Finding the Fourth Proportional to 30,732.23, 42,412.05 and 18,791.82

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Solution

The fourth proportional to 30,732.23, 42,412.05 and 18,791.82 is: 25,933.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,732.23 : 42,412.05 = 18,791.82 : x
  2. Step 2: Convert to fraction form
    30,732.23/42,412.05 = 18,791.82/x
  3. Step 3: Cross multiply
    30,732.23x = 42,412.05 × 18,791.82
  4. Step 4: Simplify right side
    30,732.23x = 796,999,609.43
  5. Step 5: Solve for x
    x = 796,999,609.43/30,732.23
  6. Step 6: Final answer
    x = 25,933.68

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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.