Home / 38,992.08-53,809.52-21,087.44

Finding the Fourth Proportional to 38,992.08, 53,809.52 and 21,087.44

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Solution

The fourth proportional to 38,992.08, 53,809.52 and 21,087.44 is: 29,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,992.08 : 53,809.52 = 21,087.44 : x
  2. Step 2: Convert to fraction form
    38,992.08/53,809.52 = 21,087.44/x
  3. Step 3: Cross multiply
    38,992.08x = 53,809.52 × 21,087.44
  4. Step 4: Simplify right side
    38,992.08x = 1,134,704,851.73
  5. Step 5: Solve for x
    x = 1,134,704,851.73/38,992.08
  6. Step 6: Final answer
    x = 29,100.90

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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.