Home / 39,728.76-54,826.92-21,823.44

Finding the Fourth Proportional to 39,728.76, 54,826.92 and 21,823.44

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Solution

The fourth proportional to 39,728.76, 54,826.92 and 21,823.44 is: 30,117.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,728.76 : 54,826.92 = 21,823.44 : x
  2. Step 2: Convert to fraction form
    39,728.76/54,826.92 = 21,823.44/x
  3. Step 3: Cross multiply
    39,728.76x = 54,826.92 × 21,823.44
  4. Step 4: Simplify right side
    39,728.76x = 1,196,511,999.00
  5. Step 5: Solve for x
    x = 1,196,511,999.00/39,728.76
  6. Step 6: Final answer
    x = 30,117.02

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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.