Home / 20,836.15-31,244.50-12,073.57

Finding the Fourth Proportional to 20,836.15, 31,244.50 and 12,073.57

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Solution

The fourth proportional to 20,836.15, 31,244.50 and 12,073.57 is: 18,104.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.15 : 31,244.50 = 12,073.57 : x
  2. Step 2: Convert to fraction form
    20,836.15/31,244.50 = 12,073.57/x
  3. Step 3: Cross multiply
    20,836.15x = 31,244.50 × 12,073.57
  4. Step 4: Simplify right side
    20,836.15x = 377,232,594.85
  5. Step 5: Solve for x
    x = 377,232,594.85/20,836.15
  6. Step 6: Final answer
    x = 18,104.72

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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.