Home / 36,720.20-55,080.30-9,018.20

Finding the Fourth Proportional to 36,720.20, 55,080.30 and 9,018.20

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Solution

The fourth proportional to 36,720.20, 55,080.30 and 9,018.20 is: 13,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,720.20 : 55,080.30 = 9,018.20 : x
  2. Step 2: Convert to fraction form
    36,720.20/55,080.30 = 9,018.20/x
  3. Step 3: Cross multiply
    36,720.20x = 55,080.30 × 9,018.20
  4. Step 4: Simplify right side
    36,720.20x = 496,725,161.46
  5. Step 5: Solve for x
    x = 496,725,161.46/36,720.20
  6. Step 6: Final answer
    x = 13,527.30

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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.