Home / 30,105.39-45,157.75-9,044.52

Finding the Fourth Proportional to 30,105.39, 45,157.75 and 9,044.52

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Solution

The fourth proportional to 30,105.39, 45,157.75 and 9,044.52 is: 13,566.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,105.39 : 45,157.75 = 9,044.52 : x
  2. Step 2: Convert to fraction form
    30,105.39/45,157.75 = 9,044.52/x
  3. Step 3: Cross multiply
    30,105.39x = 45,157.75 × 9,044.52
  4. Step 4: Simplify right side
    30,105.39x = 408,430,173.03
  5. Step 5: Solve for x
    x = 408,430,173.03/30,105.39
  6. Step 6: Final answer
    x = 13,566.68

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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.