Home / 39,219.53-54,122.67-21,314.07

Finding the Fourth Proportional to 39,219.53, 54,122.67 and 21,314.07

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Solution

The fourth proportional to 39,219.53, 54,122.67 and 21,314.07 is: 29,413.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,219.53 : 54,122.67 = 21,314.07 : x
  2. Step 2: Convert to fraction form
    39,219.53/54,122.67 = 21,314.07/x
  3. Step 3: Cross multiply
    39,219.53x = 54,122.67 × 21,314.07
  4. Step 4: Simplify right side
    39,219.53x = 1,153,574,376.97
  5. Step 5: Solve for x
    x = 1,153,574,376.97/39,219.53
  6. Step 6: Final answer
    x = 29,413.27

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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.