Home / 30,456.90-45,693.99-18,462.42

Finding the Fourth Proportional to 30,456.90, 45,693.99 and 18,462.42

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Solution

The fourth proportional to 30,456.90, 45,693.99 and 18,462.42 is: 27,698.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456.90 : 45,693.99 = 18,462.42 : x
  2. Step 2: Convert to fraction form
    30,456.90/45,693.99 = 18,462.42/x
  3. Step 3: Cross multiply
    30,456.90x = 45,693.99 × 18,462.42
  4. Step 4: Simplify right side
    30,456.90x = 843,621,634.86
  5. Step 5: Solve for x
    x = 843,621,634.86/30,456.90
  6. Step 6: Final answer
    x = 27,698.87

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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.