Home / 27,793.06-38,359.86-21,731.32

Finding the Fourth Proportional to 27,793.06, 38,359.86 and 21,731.32

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Solution

The fourth proportional to 27,793.06, 38,359.86 and 21,731.32 is: 29,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,793.06 : 38,359.86 = 21,731.32 : x
  2. Step 2: Convert to fraction form
    27,793.06/38,359.86 = 21,731.32/x
  3. Step 3: Cross multiply
    27,793.06x = 38,359.86 × 21,731.32
  4. Step 4: Simplify right side
    27,793.06x = 833,610,481.51
  5. Step 5: Solve for x
    x = 833,610,481.51/27,793.06
  6. Step 6: Final answer
    x = 29,993.48

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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.