Home / 28,042.42-42,035.24-18,187.96

Finding the Fourth Proportional to 28,042.42, 42,035.24 and 18,187.96

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Solution

The fourth proportional to 28,042.42, 42,035.24 and 18,187.96 is: 27,263.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.42 : 42,035.24 = 18,187.96 : x
  2. Step 2: Convert to fraction form
    28,042.42/42,035.24 = 18,187.96/x
  3. Step 3: Cross multiply
    28,042.42x = 42,035.24 × 18,187.96
  4. Step 4: Simplify right side
    28,042.42x = 764,535,263.71
  5. Step 5: Solve for x
    x = 764,535,263.71/28,042.42
  6. Step 6: Final answer
    x = 27,263.53

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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.