Home / 20,360.32-30,479.04-18,413.44

Finding the Fourth Proportional to 20,360.32, 30,479.04 and 18,413.44

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Solution

The fourth proportional to 20,360.32, 30,479.04 and 18,413.44 is: 27,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.32 : 30,479.04 = 18,413.44 : x
  2. Step 2: Convert to fraction form
    20,360.32/30,479.04 = 18,413.44/x
  3. Step 3: Cross multiply
    20,360.32x = 30,479.04 × 18,413.44
  4. Step 4: Simplify right side
    20,360.32x = 561,223,974.30
  5. Step 5: Solve for x
    x = 561,223,974.30/20,360.32
  6. Step 6: Final answer
    x = 27,564.59

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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.