Home / 20,927.34-28,879.62-11,496.06

Finding the Fourth Proportional to 20,927.34, 28,879.62 and 11,496.06

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Solution

The fourth proportional to 20,927.34, 28,879.62 and 11,496.06 is: 15,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.34 : 28,879.62 = 11,496.06 : x
  2. Step 2: Convert to fraction form
    20,927.34/28,879.62 = 11,496.06/x
  3. Step 3: Cross multiply
    20,927.34x = 28,879.62 × 11,496.06
  4. Step 4: Simplify right side
    20,927.34x = 332,001,844.30
  5. Step 5: Solve for x
    x = 332,001,844.30/20,927.34
  6. Step 6: Final answer
    x = 15,864.50

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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.