Home / 18,942.55-28,417.02-5,791.84

Finding the Fourth Proportional to 18,942.55, 28,417.02 and 5,791.84

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Solution

The fourth proportional to 18,942.55, 28,417.02 and 5,791.84 is: 8,688.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.55 : 28,417.02 = 5,791.84 : x
  2. Step 2: Convert to fraction form
    18,942.55/28,417.02 = 5,791.84/x
  3. Step 3: Cross multiply
    18,942.55x = 28,417.02 × 5,791.84
  4. Step 4: Simplify right side
    18,942.55x = 164,586,833.12
  5. Step 5: Solve for x
    x = 164,586,833.12/18,942.55
  6. Step 6: Final answer
    x = 8,688.74

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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.