Home / 36,265.80-54,401.40-12,889.20

Finding the Fourth Proportional to 36,265.80, 54,401.40 and 12,889.20

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Solution

The fourth proportional to 36,265.80, 54,401.40 and 12,889.20 is: 19,334.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,265.80 : 54,401.40 = 12,889.20 : x
  2. Step 2: Convert to fraction form
    36,265.80/54,401.40 = 12,889.20/x
  3. Step 3: Cross multiply
    36,265.80x = 54,401.40 × 12,889.20
  4. Step 4: Simplify right side
    36,265.80x = 701,190,524.88
  5. Step 5: Solve for x
    x = 701,190,524.88/36,265.80
  6. Step 6: Final answer
    x = 19,334.76

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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.