Home / 30,131.04-45,191.42-7,944.63

Finding the Fourth Proportional to 30,131.04, 45,191.42 and 7,944.63

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Solution

The fourth proportional to 30,131.04, 45,191.42 and 7,944.63 is: 11,915.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,131.04 : 45,191.42 = 7,944.63 : x
  2. Step 2: Convert to fraction form
    30,131.04/45,191.42 = 7,944.63/x
  3. Step 3: Cross multiply
    30,131.04x = 45,191.42 × 7,944.63
  4. Step 4: Simplify right side
    30,131.04x = 359,029,185.88
  5. Step 5: Solve for x
    x = 359,029,185.88/30,131.04
  6. Step 6: Final answer
    x = 11,915.59

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Similar ratio
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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.