Home / 20,155.24-30,103.85-16,000

Finding the Fourth Proportional to 20,155.24, 30,103.85 and 16,000

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Solution

The fourth proportional to 20,155.24, 30,103.85 and 16,000 is: 23,897.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.24 : 30,103.85 = 16,000 : x
  2. Step 2: Convert to fraction form
    20,155.24/30,103.85 = 16,000/x
  3. Step 3: Cross multiply
    20,155.24x = 30,103.85 × 16,000
  4. Step 4: Simplify right side
    20,155.24x = 481,661,600
  5. Step 5: Solve for x
    x = 481,661,600/20,155.24
  6. Step 6: Final answer
    x = 23,897.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.