Home / 28,035.91-42,025.50-18,181.45

Finding the Fourth Proportional to 28,035.91, 42,025.50 and 18,181.45

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Solution

The fourth proportional to 28,035.91, 42,025.50 and 18,181.45 is: 27,253.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.91 : 42,025.50 = 18,181.45 : x
  2. Step 2: Convert to fraction form
    28,035.91/42,025.50 = 18,181.45/x
  3. Step 3: Cross multiply
    28,035.91x = 42,025.50 × 18,181.45
  4. Step 4: Simplify right side
    28,035.91x = 764,084,526.98
  5. Step 5: Solve for x
    x = 764,084,526.98/28,035.91
  6. Step 6: Final answer
    x = 27,253.78

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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.