Home / 39,185.84-54,074.97-21,280.46

Finding the Fourth Proportional to 39,185.84, 54,074.97 and 21,280.46

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Solution

The fourth proportional to 39,185.84, 54,074.97 and 21,280.46 is: 29,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,185.84 : 54,074.97 = 21,280.46 : x
  2. Step 2: Convert to fraction form
    39,185.84/54,074.97 = 21,280.46/x
  3. Step 3: Cross multiply
    39,185.84x = 54,074.97 × 21,280.46
  4. Step 4: Simplify right side
    39,185.84x = 1,150,740,236.09
  5. Step 5: Solve for x
    x = 1,150,740,236.09/39,185.84
  6. Step 6: Final answer
    x = 29,366.23

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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.