Home / 20,181.59-30,230.69-11,836.47

Finding the Fourth Proportional to 20,181.59, 30,230.69 and 11,836.47

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Solution

The fourth proportional to 20,181.59, 30,230.69 and 11,836.47 is: 17,730.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.59 : 30,230.69 = 11,836.47 : x
  2. Step 2: Convert to fraction form
    20,181.59/30,230.69 = 11,836.47/x
  3. Step 3: Cross multiply
    20,181.59x = 30,230.69 × 11,836.47
  4. Step 4: Simplify right side
    20,181.59x = 357,824,596.08
  5. Step 5: Solve for x
    x = 357,824,596.08/20,181.59
  6. Step 6: Final answer
    x = 17,730.25

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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.