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Finding the Fourth Proportional to 32,879.82, 45,338.48 and 20,927.88

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Solution

The fourth proportional to 32,879.82, 45,338.48 and 20,927.88 is: 28,857.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,879.82 : 45,338.48 = 20,927.88 : x
  2. Step 2: Convert to fraction form
    32,879.82/45,338.48 = 20,927.88/x
  3. Step 3: Cross multiply
    32,879.82x = 45,338.48 × 20,927.88
  4. Step 4: Simplify right side
    32,879.82x = 948,838,268.82
  5. Step 5: Solve for x
    x = 948,838,268.82/32,879.82
  6. Step 6: Final answer
    x = 28,857.77

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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.