Home / 22,431.60-33,647.40-9,279.60

Finding the Fourth Proportional to 22,431.60, 33,647.40 and 9,279.60

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Solution

The fourth proportional to 22,431.60, 33,647.40 and 9,279.60 is: 13,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,431.60 : 33,647.40 = 9,279.60 : x
  2. Step 2: Convert to fraction form
    22,431.60/33,647.40 = 9,279.60/x
  3. Step 3: Cross multiply
    22,431.60x = 33,647.40 × 9,279.60
  4. Step 4: Simplify right side
    22,431.60x = 312,234,413.04
  5. Step 5: Solve for x
    x = 312,234,413.04/22,431.60
  6. Step 6: Final answer
    x = 13,919.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.