Home / 36,128.80-54,193.20-20,576.80

Finding the Fourth Proportional to 36,128.80, 54,193.20 and 20,576.80

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Solution

The fourth proportional to 36,128.80, 54,193.20 and 20,576.80 is: 30,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,128.80 : 54,193.20 = 20,576.80 : x
  2. Step 2: Convert to fraction form
    36,128.80/54,193.20 = 20,576.80/x
  3. Step 3: Cross multiply
    36,128.80x = 54,193.20 × 20,576.80
  4. Step 4: Simplify right side
    36,128.80x = 1,115,122,637.76
  5. Step 5: Solve for x
    x = 1,115,122,637.76/36,128.80
  6. Step 6: Final answer
    x = 30,865.20

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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.