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Finding the Fourth Proportional to 34,400.94, 51,621.12 and 18,606.21

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Solution

The fourth proportional to 34,400.94, 51,621.12 and 18,606.21 is: 27,919.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,400.94 : 51,621.12 = 18,606.21 : x
  2. Step 2: Convert to fraction form
    34,400.94/51,621.12 = 18,606.21/x
  3. Step 3: Cross multiply
    34,400.94x = 51,621.12 × 18,606.21
  4. Step 4: Simplify right side
    34,400.94x = 960,473,399.16
  5. Step 5: Solve for x
    x = 960,473,399.16/34,400.94
  6. Step 6: Final answer
    x = 27,919.98

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1.5x scale

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.