Home / 40,213.22-60,300.32-12,128.09

Finding the Fourth Proportional to 40,213.22, 60,300.32 and 12,128.09

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Solution

The fourth proportional to 40,213.22, 60,300.32 and 12,128.09 is: 18,186.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,213.22 : 60,300.32 = 12,128.09 : x
  2. Step 2: Convert to fraction form
    40,213.22/60,300.32 = 12,128.09/x
  3. Step 3: Cross multiply
    40,213.22x = 60,300.32 × 12,128.09
  4. Step 4: Simplify right side
    40,213.22x = 731,327,436.81
  5. Step 5: Solve for x
    x = 731,327,436.81/40,213.22
  6. Step 6: Final answer
    x = 18,186.25

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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.