Home / 39,318.22-54,259.79-21,413.58

Finding the Fourth Proportional to 39,318.22, 54,259.79 and 21,413.58

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Solution

The fourth proportional to 39,318.22, 54,259.79 and 21,413.58 is: 29,551.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318.22 : 54,259.79 = 21,413.58 : x
  2. Step 2: Convert to fraction form
    39,318.22/54,259.79 = 21,413.58/x
  3. Step 3: Cross multiply
    39,318.22x = 54,259.79 × 21,413.58
  4. Step 4: Simplify right side
    39,318.22x = 1,161,896,353.95
  5. Step 5: Solve for x
    x = 1,161,896,353.95/39,318.22
  6. Step 6: Final answer
    x = 29,551.09

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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.