Home / 19,939.70-29,909.55-16,829.30

Finding the Fourth Proportional to 19,939.70, 29,909.55 and 16,829.30

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Solution

The fourth proportional to 19,939.70, 29,909.55 and 16,829.30 is: 25,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.70 : 29,909.55 = 16,829.30 : x
  2. Step 2: Convert to fraction form
    19,939.70/29,909.55 = 16,829.30/x
  3. Step 3: Cross multiply
    19,939.70x = 29,909.55 × 16,829.30
  4. Step 4: Simplify right side
    19,939.70x = 503,356,789.82
  5. Step 5: Solve for x
    x = 503,356,789.82/19,939.70
  6. Step 6: Final answer
    x = 25,243.95

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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.