Home / 39,848.94-54,992.67-21,945.21

Finding the Fourth Proportional to 39,848.94, 54,992.67 and 21,945.21

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Solution

The fourth proportional to 39,848.94, 54,992.67 and 21,945.21 is: 30,285.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,848.94 : 54,992.67 = 21,945.21 : x
  2. Step 2: Convert to fraction form
    39,848.94/54,992.67 = 21,945.21/x
  3. Step 3: Cross multiply
    39,848.94x = 54,992.67 × 21,945.21
  4. Step 4: Simplify right side
    39,848.94x = 1,206,825,691.61
  5. Step 5: Solve for x
    x = 1,206,825,691.61/39,848.94
  6. Step 6: Final answer
    x = 30,285.01

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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.