Home / 20,181.73-30,260.29-7,688.41

Finding the Fourth Proportional to 20,181.73, 30,260.29 and 7,688.41

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Solution

The fourth proportional to 20,181.73, 30,260.29 and 7,688.41 is: 11,527.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.73 : 30,260.29 = 7,688.41 : x
  2. Step 2: Convert to fraction form
    20,181.73/30,260.29 = 7,688.41/x
  3. Step 3: Cross multiply
    20,181.73x = 30,260.29 × 7,688.41
  4. Step 4: Simplify right side
    20,181.73x = 232,653,516.24
  5. Step 5: Solve for x
    x = 232,653,516.24/20,181.73
  6. Step 6: Final answer
    x = 11,527.93

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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.