Home / 30,210.87-41,694.27-18,280.77

Finding the Fourth Proportional to 30,210.87, 41,694.27 and 18,280.77

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Solution

The fourth proportional to 30,210.87, 41,694.27 and 18,280.77 is: 25,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.87 : 41,694.27 = 18,280.77 : x
  2. Step 2: Convert to fraction form
    30,210.87/41,694.27 = 18,280.77/x
  3. Step 3: Cross multiply
    30,210.87x = 41,694.27 × 18,280.77
  4. Step 4: Simplify right side
    30,210.87x = 762,203,360.19
  5. Step 5: Solve for x
    x = 762,203,360.19/30,210.87
  6. Step 6: Final answer
    x = 25,229.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.