Home / 20,833.98-28,680.39-16,109.34

Finding the Fourth Proportional to 20,833.98, 28,680.39 and 16,109.34

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Solution

The fourth proportional to 20,833.98, 28,680.39 and 16,109.34 is: 22,176.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.98 : 28,680.39 = 16,109.34 : x
  2. Step 2: Convert to fraction form
    20,833.98/28,680.39 = 16,109.34/x
  3. Step 3: Cross multiply
    20,833.98x = 28,680.39 × 16,109.34
  4. Step 4: Simplify right side
    20,833.98x = 462,022,153.84
  5. Step 5: Solve for x
    x = 462,022,153.84/20,833.98
  6. Step 6: Final answer
    x = 22,176.38

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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.