Home / 30,387.96-45,590.31-10,663.92

Finding the Fourth Proportional to 30,387.96, 45,590.31 and 10,663.92

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Solution

The fourth proportional to 30,387.96, 45,590.31 and 10,663.92 is: 15,998.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,387.96 : 45,590.31 = 10,663.92 : x
  2. Step 2: Convert to fraction form
    30,387.96/45,590.31 = 10,663.92/x
  3. Step 3: Cross multiply
    30,387.96x = 45,590.31 × 10,663.92
  4. Step 4: Simplify right side
    30,387.96x = 486,171,418.62
  5. Step 5: Solve for x
    x = 486,171,418.62/30,387.96
  6. Step 6: Final answer
    x = 15,998.82

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1.5x scale

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.