Home / 20,834.93-28,745.05-11,875.97

Finding the Fourth Proportional to 20,834.93, 28,745.05 and 11,875.97

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Solution

The fourth proportional to 20,834.93, 28,745.05 and 11,875.97 is: 16,384.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.93 : 28,745.05 = 11,875.97 : x
  2. Step 2: Convert to fraction form
    20,834.93/28,745.05 = 11,875.97/x
  3. Step 3: Cross multiply
    20,834.93x = 28,745.05 × 11,875.97
  4. Step 4: Simplify right side
    20,834.93x = 341,375,178.03
  5. Step 5: Solve for x
    x = 341,375,178.03/20,834.93
  6. Step 6: Final answer
    x = 16,384.76

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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.