Home / 39,738.16-54,839.68-21,833.62

Finding the Fourth Proportional to 39,738.16, 54,839.68 and 21,833.62

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Solution

The fourth proportional to 39,738.16, 54,839.68 and 21,833.62 is: 30,130.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,738.16 : 54,839.68 = 21,833.62 : x
  2. Step 2: Convert to fraction form
    39,738.16/54,839.68 = 21,833.62/x
  3. Step 3: Cross multiply
    39,738.16x = 54,839.68 × 21,833.62
  4. Step 4: Simplify right side
    39,738.16x = 1,197,348,734.04
  5. Step 5: Solve for x
    x = 1,197,348,734.04/39,738.16
  6. Step 6: Final answer
    x = 30,130.96

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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.