Home / 28,378.56-42,564.60-7,600.44

Finding the Fourth Proportional to 28,378.56, 42,564.60 and 7,600.44

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Solution

The fourth proportional to 28,378.56, 42,564.60 and 7,600.44 is: 11,399.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378.56 : 42,564.60 = 7,600.44 : x
  2. Step 2: Convert to fraction form
    28,378.56/42,564.60 = 7,600.44/x
  3. Step 3: Cross multiply
    28,378.56x = 42,564.60 × 7,600.44
  4. Step 4: Simplify right side
    28,378.56x = 323,509,688.42
  5. Step 5: Solve for x
    x = 323,509,688.42/28,378.56
  6. Step 6: Final answer
    x = 11,399.79

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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.