Home / 40,318.38-55,638.09-22,413.06

Finding the Fourth Proportional to 40,318.38, 55,638.09 and 22,413.06

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Solution

The fourth proportional to 40,318.38, 55,638.09 and 22,413.06 is: 30,929.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,318.38 : 55,638.09 = 22,413.06 : x
  2. Step 2: Convert to fraction form
    40,318.38/55,638.09 = 22,413.06/x
  3. Step 3: Cross multiply
    40,318.38x = 55,638.09 × 22,413.06
  4. Step 4: Simplify right side
    40,318.38x = 1,247,019,849.46
  5. Step 5: Solve for x
    x = 1,247,019,849.46/40,318.38
  6. Step 6: Final answer
    x = 30,929.31

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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.