Home / 20,370.52-28,110.83-11,295.83

Finding the Fourth Proportional to 20,370.52, 28,110.83 and 11,295.83

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Solution

The fourth proportional to 20,370.52, 28,110.83 and 11,295.83 is: 15,587.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.52 : 28,110.83 = 11,295.83 : x
  2. Step 2: Convert to fraction form
    20,370.52/28,110.83 = 11,295.83/x
  3. Step 3: Cross multiply
    20,370.52x = 28,110.83 × 11,295.83
  4. Step 4: Simplify right side
    20,370.52x = 317,535,170.64
  5. Step 5: Solve for x
    x = 317,535,170.64/20,370.52
  6. Step 6: Final answer
    x = 15,587.97

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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.