Home / 39,680.54-59,520.99-13,385.51

Finding the Fourth Proportional to 39,680.54, 59,520.99 and 13,385.51

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Solution

The fourth proportional to 39,680.54, 59,520.99 and 13,385.51 is: 20,078.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,680.54 : 59,520.99 = 13,385.51 : x
  2. Step 2: Convert to fraction form
    39,680.54/59,520.99 = 13,385.51/x
  3. Step 3: Cross multiply
    39,680.54x = 59,520.99 × 13,385.51
  4. Step 4: Simplify right side
    39,680.54x = 796,718,806.85
  5. Step 5: Solve for x
    x = 796,718,806.85/39,680.54
  6. Step 6: Final answer
    x = 20,078.33

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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.