Home / 18,217.86-25,087.71-15,826.74

Finding the Fourth Proportional to 18,217.86, 25,087.71 and 15,826.74

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Solution

The fourth proportional to 18,217.86, 25,087.71 and 15,826.74 is: 21,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.86 : 25,087.71 = 15,826.74 : x
  2. Step 2: Convert to fraction form
    18,217.86/25,087.71 = 15,826.74/x
  3. Step 3: Cross multiply
    18,217.86x = 25,087.71 × 15,826.74
  4. Step 4: Simplify right side
    18,217.86x = 397,056,663.37
  5. Step 5: Solve for x
    x = 397,056,663.37/18,217.86
  6. Step 6: Final answer
    x = 21,794.91

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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.