Home / 18,688.52-28,028.02-5,537.81

Finding the Fourth Proportional to 18,688.52, 28,028.02 and 5,537.81

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Solution

The fourth proportional to 18,688.52, 28,028.02 and 5,537.81 is: 8,305.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.52 : 28,028.02 = 5,537.81 : x
  2. Step 2: Convert to fraction form
    18,688.52/28,028.02 = 5,537.81/x
  3. Step 3: Cross multiply
    18,688.52x = 28,028.02 × 5,537.81
  4. Step 4: Simplify right side
    18,688.52x = 155,213,821.75
  5. Step 5: Solve for x
    x = 155,213,821.75/18,688.52
  6. Step 6: Final answer
    x = 8,305.31

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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.