Home / 30,869.87-46,311.29-10,091.75

Finding the Fourth Proportional to 30,869.87, 46,311.29 and 10,091.75

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Solution

The fourth proportional to 30,869.87, 46,311.29 and 10,091.75 is: 15,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,869.87 : 46,311.29 = 10,091.75 : x
  2. Step 2: Convert to fraction form
    30,869.87/46,311.29 = 10,091.75/x
  3. Step 3: Cross multiply
    30,869.87x = 46,311.29 × 10,091.75
  4. Step 4: Simplify right side
    30,869.87x = 467,361,960.86
  5. Step 5: Solve for x
    x = 467,361,960.86/30,869.87
  6. Step 6: Final answer
    x = 15,139.75

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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.