Home / 39,219.27-54,122.55-21,314.24

Finding the Fourth Proportional to 39,219.27, 54,122.55 and 21,314.24

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Solution

The fourth proportional to 39,219.27, 54,122.55 and 21,314.24 is: 29,413.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,219.27 : 54,122.55 = 21,314.24 : x
  2. Step 2: Convert to fraction form
    39,219.27/54,122.55 = 21,314.24/x
  3. Step 3: Cross multiply
    39,219.27x = 54,122.55 × 21,314.24
  4. Step 4: Simplify right side
    39,219.27x = 1,153,580,872.53
  5. Step 5: Solve for x
    x = 1,153,580,872.53/39,219.27
  6. Step 6: Final answer
    x = 29,413.62

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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.