Home / 47,981.40-71,984.86-16,391.41

Finding the Fourth Proportional to 47,981.40, 71,984.86 and 16,391.41

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Solution

The fourth proportional to 47,981.40, 71,984.86 and 16,391.41 is: 24,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,981.40 : 71,984.86 = 16,391.41 : x
  2. Step 2: Convert to fraction form
    47,981.40/71,984.86 = 16,391.41/x
  3. Step 3: Cross multiply
    47,981.40x = 71,984.86 × 16,391.41
  4. Step 4: Simplify right side
    47,981.40x = 1,179,933,630.23
  5. Step 5: Solve for x
    x = 1,179,933,630.23/47,981.40
  6. Step 6: Final answer
    x = 24,591.48

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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.