Home / 30,185.46-41,653.89-18,255.36

Finding the Fourth Proportional to 30,185.46, 41,653.89 and 18,255.36

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Solution

The fourth proportional to 30,185.46, 41,653.89 and 18,255.36 is: 25,191.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.46 : 41,653.89 = 18,255.36 : x
  2. Step 2: Convert to fraction form
    30,185.46/41,653.89 = 18,255.36/x
  3. Step 3: Cross multiply
    30,185.46x = 41,653.89 × 18,255.36
  4. Step 4: Simplify right side
    30,185.46x = 760,406,757.35
  5. Step 5: Solve for x
    x = 760,406,757.35/30,185.46
  6. Step 6: Final answer
    x = 25,191.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.