Home / 28,094.68-42,144.52-7,318.36

Finding the Fourth Proportional to 28,094.68, 42,144.52 and 7,318.36

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Solution

The fourth proportional to 28,094.68, 42,144.52 and 7,318.36 is: 10,978.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,094.68 : 42,144.52 = 7,318.36 : x
  2. Step 2: Convert to fraction form
    28,094.68/42,144.52 = 7,318.36/x
  3. Step 3: Cross multiply
    28,094.68x = 42,144.52 × 7,318.36
  4. Step 4: Simplify right side
    28,094.68x = 308,428,769.39
  5. Step 5: Solve for x
    x = 308,428,769.39/28,094.68
  6. Step 6: Final answer
    x = 10,978.19

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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.