Home / 20,129.86-30,059.23-16,439.41

Finding the Fourth Proportional to 20,129.86, 30,059.23 and 16,439.41

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Solution

The fourth proportional to 20,129.86, 30,059.23 and 16,439.41 is: 24,548.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129.86 : 30,059.23 = 16,439.41 : x
  2. Step 2: Convert to fraction form
    20,129.86/30,059.23 = 16,439.41/x
  3. Step 3: Cross multiply
    20,129.86x = 30,059.23 × 16,439.41
  4. Step 4: Simplify right side
    20,129.86x = 494,155,855.96
  5. Step 5: Solve for x
    x = 494,155,855.96/20,129.86
  6. Step 6: Final answer
    x = 24,548.41

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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.