Home / 39,845.73-54,987.47-21,941.14

Finding the Fourth Proportional to 39,845.73, 54,987.47 and 21,941.14

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Solution

The fourth proportional to 39,845.73, 54,987.47 and 21,941.14 is: 30,278.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,845.73 : 54,987.47 = 21,941.14 : x
  2. Step 2: Convert to fraction form
    39,845.73/54,987.47 = 21,941.14/x
  3. Step 3: Cross multiply
    39,845.73x = 54,987.47 × 21,941.14
  4. Step 4: Simplify right side
    39,845.73x = 1,206,487,777.52
  5. Step 5: Solve for x
    x = 1,206,487,777.52/39,845.73
  6. Step 6: Final answer
    x = 30,278.97

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Double scale
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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.