Home / 30,715.20-46,072.77-8,528.57

Finding the Fourth Proportional to 30,715.20, 46,072.77 and 8,528.57

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Solution

The fourth proportional to 30,715.20, 46,072.77 and 8,528.57 is: 12,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,715.20 : 46,072.77 = 8,528.57 : x
  2. Step 2: Convert to fraction form
    30,715.20/46,072.77 = 8,528.57/x
  3. Step 3: Cross multiply
    30,715.20x = 46,072.77 × 8,528.57
  4. Step 4: Simplify right side
    30,715.20x = 392,934,696.85
  5. Step 5: Solve for x
    x = 392,934,696.85/30,715.20
  6. Step 6: Final answer
    x = 12,792.84

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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.