Home / 28,571.87-42,684.06-18,494.53

Finding the Fourth Proportional to 28,571.87, 42,684.06 and 18,494.53

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Solution

The fourth proportional to 28,571.87, 42,684.06 and 18,494.53 is: 27,629.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.87 : 42,684.06 = 18,494.53 : x
  2. Step 2: Convert to fraction form
    28,571.87/42,684.06 = 18,494.53/x
  3. Step 3: Cross multiply
    28,571.87x = 42,684.06 × 18,494.53
  4. Step 4: Simplify right side
    28,571.87x = 789,421,434.79
  5. Step 5: Solve for x
    x = 789,421,434.79/28,571.87
  6. Step 6: Final answer
    x = 27,629.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.