Home / 22,684.15-31,305.88-13,609.85

Finding the Fourth Proportional to 22,684.15, 31,305.88 and 13,609.85

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Solution

The fourth proportional to 22,684.15, 31,305.88 and 13,609.85 is: 18,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,684.15 : 31,305.88 = 13,609.85 : x
  2. Step 2: Convert to fraction form
    22,684.15/31,305.88 = 13,609.85/x
  3. Step 3: Cross multiply
    22,684.15x = 31,305.88 × 13,609.85
  4. Step 4: Simplify right side
    22,684.15x = 426,068,330.92
  5. Step 5: Solve for x
    x = 426,068,330.92/22,684.15
  6. Step 6: Final answer
    x = 18,782.64

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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.