Home / 20,910.62-28,852.92-11,835.93

Finding the Fourth Proportional to 20,910.62, 28,852.92 and 11,835.93

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Solution

The fourth proportional to 20,910.62, 28,852.92 and 11,835.93 is: 16,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,910.62 : 28,852.92 = 11,835.93 : x
  2. Step 2: Convert to fraction form
    20,910.62/28,852.92 = 11,835.93/x
  3. Step 3: Cross multiply
    20,910.62x = 28,852.92 × 11,835.93
  4. Step 4: Simplify right side
    20,910.62x = 341,501,247.30
  5. Step 5: Solve for x
    x = 341,501,247.30/20,910.62
  6. Step 6: Final answer
    x = 16,331.48

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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.