Home / 39,839.80-54,995.94-28,362.12

Finding the Fourth Proportional to 39,839.80, 54,995.94 and 28,362.12

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Solution

The fourth proportional to 39,839.80, 54,995.94 and 28,362.12 is: 39,151.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,839.80 : 54,995.94 = 28,362.12 : x
  2. Step 2: Convert to fraction form
    39,839.80/54,995.94 = 28,362.12/x
  3. Step 3: Cross multiply
    39,839.80x = 54,995.94 × 28,362.12
  4. Step 4: Simplify right side
    39,839.80x = 1,559,801,449.79
  5. Step 5: Solve for x
    x = 1,559,801,449.79/39,839.80
  6. Step 6: Final answer
    x = 39,151.84

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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.