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Finding the Fourth Proportional to 16,477.72, 22,776.63 and 15,169.87

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Solution

The fourth proportional to 16,477.72, 22,776.63 and 15,169.87 is: 20,968.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,477.72 : 22,776.63 = 15,169.87 : x
  2. Step 2: Convert to fraction form
    16,477.72/22,776.63 = 15,169.87/x
  3. Step 3: Cross multiply
    16,477.72x = 22,776.63 × 15,169.87
  4. Step 4: Simplify right side
    16,477.72x = 345,518,516.14
  5. Step 5: Solve for x
    x = 345,518,516.14/16,477.72
  6. Step 6: Final answer
    x = 20,968.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.