Home / 39,812.73-54,941.22-21,908.49

Finding the Fourth Proportional to 39,812.73, 54,941.22 and 21,908.49

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Solution

The fourth proportional to 39,812.73, 54,941.22 and 21,908.49 is: 30,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,812.73 : 54,941.22 = 21,908.49 : x
  2. Step 2: Convert to fraction form
    39,812.73/54,941.22 = 21,908.49/x
  3. Step 3: Cross multiply
    39,812.73x = 54,941.22 × 21,908.49
  4. Step 4: Simplify right side
    39,812.73x = 1,203,679,168.96
  5. Step 5: Solve for x
    x = 1,203,679,168.96/39,812.73
  6. Step 6: Final answer
    x = 30,233.53

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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.