Home / 18,405.29-25,392.83-12,035.61

Finding the Fourth Proportional to 18,405.29, 25,392.83 and 12,035.61

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Solution

The fourth proportional to 18,405.29, 25,392.83 and 12,035.61 is: 16,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.29 : 25,392.83 = 12,035.61 : x
  2. Step 2: Convert to fraction form
    18,405.29/25,392.83 = 12,035.61/x
  3. Step 3: Cross multiply
    18,405.29x = 25,392.83 × 12,035.61
  4. Step 4: Simplify right side
    18,405.29x = 305,618,011.53
  5. Step 5: Solve for x
    x = 305,618,011.53/18,405.29
  6. Step 6: Final answer
    x = 16,604.91

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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.