Home / 30,089.75-45,144.91-11,375.17

Finding the Fourth Proportional to 30,089.75, 45,144.91 and 11,375.17

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Solution

The fourth proportional to 30,089.75, 45,144.91 and 11,375.17 is: 17,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,089.75 : 45,144.91 = 11,375.17 : x
  2. Step 2: Convert to fraction form
    30,089.75/45,144.91 = 11,375.17/x
  3. Step 3: Cross multiply
    30,089.75x = 45,144.91 × 11,375.17
  4. Step 4: Simplify right side
    30,089.75x = 513,530,927.24
  5. Step 5: Solve for x
    x = 513,530,927.24/30,089.75
  6. Step 6: Final answer
    x = 17,066.64

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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.