Home / 28,389.36-42,579.16-7,608

Finding the Fourth Proportional to 28,389.36, 42,579.16 and 7,608

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Solution

The fourth proportional to 28,389.36, 42,579.16 and 7,608 is: 11,410.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.36 : 42,579.16 = 7,608 : x
  2. Step 2: Convert to fraction form
    28,389.36/42,579.16 = 7,608/x
  3. Step 3: Cross multiply
    28,389.36x = 42,579.16 × 7,608
  4. Step 4: Simplify right side
    28,389.36x = 323,942,249.28
  5. Step 5: Solve for x
    x = 323,942,249.28/28,389.36
  6. Step 6: Final answer
    x = 11,410.69

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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.