Home / 20,276.58-27,982.53-11,326.98

Finding the Fourth Proportional to 20,276.58, 27,982.53 and 11,326.98

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Solution

The fourth proportional to 20,276.58, 27,982.53 and 11,326.98 is: 15,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.58 : 27,982.53 = 11,326.98 : x
  2. Step 2: Convert to fraction form
    20,276.58/27,982.53 = 11,326.98/x
  3. Step 3: Cross multiply
    20,276.58x = 27,982.53 × 11,326.98
  4. Step 4: Simplify right side
    20,276.58x = 316,957,557.66
  5. Step 5: Solve for x
    x = 316,957,557.66/20,276.58
  6. Step 6: Final answer
    x = 15,631.71

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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.