Home / 20,908.20-28,852.44-11,476.98

Finding the Fourth Proportional to 20,908.20, 28,852.44 and 11,476.98

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Solution

The fourth proportional to 20,908.20, 28,852.44 and 11,476.98 is: 15,837.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.20 : 28,852.44 = 11,476.98 : x
  2. Step 2: Convert to fraction form
    20,908.20/28,852.44 = 11,476.98/x
  3. Step 3: Cross multiply
    20,908.20x = 28,852.44 × 11,476.98
  4. Step 4: Simplify right side
    20,908.20x = 331,138,876.83
  5. Step 5: Solve for x
    x = 331,138,876.83/20,908.20
  6. Step 6: Final answer
    x = 15,837.75

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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.