Home / 30,086.92-45,137.59-9,310.42

Finding the Fourth Proportional to 30,086.92, 45,137.59 and 9,310.42

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Solution

The fourth proportional to 30,086.92, 45,137.59 and 9,310.42 is: 13,967.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086.92 : 45,137.59 = 9,310.42 : x
  2. Step 2: Convert to fraction form
    30,086.92/45,137.59 = 9,310.42/x
  3. Step 3: Cross multiply
    30,086.92x = 45,137.59 × 9,310.42
  4. Step 4: Simplify right side
    30,086.92x = 420,249,920.69
  5. Step 5: Solve for x
    x = 420,249,920.69/30,086.92
  6. Step 6: Final answer
    x = 13,967.86

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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.