Home / 20,844.98-28,760.37-13,397.30

Finding the Fourth Proportional to 20,844.98, 28,760.37 and 13,397.30

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Solution

The fourth proportional to 20,844.98, 28,760.37 and 13,397.30 is: 18,484.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.98 : 28,760.37 = 13,397.30 : x
  2. Step 2: Convert to fraction form
    20,844.98/28,760.37 = 13,397.30/x
  3. Step 3: Cross multiply
    20,844.98x = 28,760.37 × 13,397.30
  4. Step 4: Simplify right side
    20,844.98x = 385,311,305.00
  5. Step 5: Solve for x
    x = 385,311,305.00/20,844.98
  6. Step 6: Final answer
    x = 18,484.61

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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.