Home / 21,133.72-31,626.78-16,963.48

Finding the Fourth Proportional to 21,133.72, 31,626.78 and 16,963.48

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Solution

The fourth proportional to 21,133.72, 31,626.78 and 16,963.48 is: 25,385.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.72 : 31,626.78 = 16,963.48 : x
  2. Step 2: Convert to fraction form
    21,133.72/31,626.78 = 16,963.48/x
  3. Step 3: Cross multiply
    21,133.72x = 31,626.78 × 16,963.48
  4. Step 4: Simplify right side
    21,133.72x = 536,500,249.99
  5. Step 5: Solve for x
    x = 536,500,249.99/21,133.72
  6. Step 6: Final answer
    x = 25,385.98

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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.