Home / 20,129.73-30,059.04-16,439.28

Finding the Fourth Proportional to 20,129.73, 30,059.04 and 16,439.28

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Solution

The fourth proportional to 20,129.73, 30,059.04 and 16,439.28 is: 24,548.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129.73 : 30,059.04 = 16,439.28 : x
  2. Step 2: Convert to fraction form
    20,129.73/30,059.04 = 16,439.28/x
  3. Step 3: Cross multiply
    20,129.73x = 30,059.04 × 16,439.28
  4. Step 4: Simplify right side
    20,129.73x = 494,148,975.09
  5. Step 5: Solve for x
    x = 494,148,975.09/20,129.73
  6. Step 6: Final answer
    x = 24,548.22

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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.