Home / 20,129.98-30,059.42-16,439.53

Finding the Fourth Proportional to 20,129.98, 30,059.42 and 16,439.53

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Solution

The fourth proportional to 20,129.98, 30,059.42 and 16,439.53 is: 24,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129.98 : 30,059.42 = 16,439.53 : x
  2. Step 2: Convert to fraction form
    20,129.98/30,059.42 = 16,439.53/x
  3. Step 3: Cross multiply
    20,129.98x = 30,059.42 × 16,439.53
  4. Step 4: Simplify right side
    20,129.98x = 494,162,736.87
  5. Step 5: Solve for x
    x = 494,162,736.87/20,129.98
  6. Step 6: Final answer
    x = 24,548.60

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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.