Home / 28,477.05-42,719.66-8,757.27

Finding the Fourth Proportional to 28,477.05, 42,719.66 and 8,757.27

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Solution

The fourth proportional to 28,477.05, 42,719.66 and 8,757.27 is: 13,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,477.05 : 42,719.66 = 8,757.27 : x
  2. Step 2: Convert to fraction form
    28,477.05/42,719.66 = 8,757.27/x
  3. Step 3: Cross multiply
    28,477.05x = 42,719.66 × 8,757.27
  4. Step 4: Simplify right side
    28,477.05x = 374,107,596.93
  5. Step 5: Solve for x
    x = 374,107,596.93/28,477.05
  6. Step 6: Final answer
    x = 13,137.16

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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.