Home / 40,091.88-60,130.44-12,015.60

Finding the Fourth Proportional to 40,091.88, 60,130.44 and 12,015.60

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Solution

The fourth proportional to 40,091.88, 60,130.44 and 12,015.60 is: 18,021.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,091.88 : 60,130.44 = 12,015.60 : x
  2. Step 2: Convert to fraction form
    40,091.88/60,130.44 = 12,015.60/x
  3. Step 3: Cross multiply
    40,091.88x = 60,130.44 × 12,015.60
  4. Step 4: Simplify right side
    40,091.88x = 722,503,314.86
  5. Step 5: Solve for x
    x = 722,503,314.86/40,091.88
  6. Step 6: Final answer
    x = 18,021.19

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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.