Home / 43,920.08-65,860.20-18,948.32

Finding the Fourth Proportional to 43,920.08, 65,860.20 and 18,948.32

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Solution

The fourth proportional to 43,920.08, 65,860.20 and 18,948.32 is: 28,413.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,920.08 : 65,860.20 = 18,948.32 : x
  2. Step 2: Convert to fraction form
    43,920.08/65,860.20 = 18,948.32/x
  3. Step 3: Cross multiply
    43,920.08x = 65,860.20 × 18,948.32
  4. Step 4: Simplify right side
    43,920.08x = 1,247,940,144.86
  5. Step 5: Solve for x
    x = 1,247,940,144.86/43,920.08
  6. Step 6: Final answer
    x = 28,413.89

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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.