Home / 20,036.93-27,663.54-12,869.73

Finding the Fourth Proportional to 20,036.93, 27,663.54 and 12,869.73

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Solution

The fourth proportional to 20,036.93, 27,663.54 and 12,869.73 is: 17,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.93 : 27,663.54 = 12,869.73 : x
  2. Step 2: Convert to fraction form
    20,036.93/27,663.54 = 12,869.73/x
  3. Step 3: Cross multiply
    20,036.93x = 27,663.54 × 12,869.73
  4. Step 4: Simplify right side
    20,036.93x = 356,022,290.64
  5. Step 5: Solve for x
    x = 356,022,290.64/20,036.93
  6. Step 6: Final answer
    x = 17,768.31

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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.