Home / 30,105.88-45,151.56-12,566.20

Finding the Fourth Proportional to 30,105.88, 45,151.56 and 12,566.20

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Solution

The fourth proportional to 30,105.88, 45,151.56 and 12,566.20 is: 18,846.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,105.88 : 45,151.56 = 12,566.20 : x
  2. Step 2: Convert to fraction form
    30,105.88/45,151.56 = 12,566.20/x
  3. Step 3: Cross multiply
    30,105.88x = 45,151.56 × 12,566.20
  4. Step 4: Simplify right side
    30,105.88x = 567,383,533.27
  5. Step 5: Solve for x
    x = 567,383,533.27/30,105.88
  6. Step 6: Final answer
    x = 18,846.27

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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.