Home / 31,936.80-47,905.20-16,190.40

Finding the Fourth Proportional to 31,936.80, 47,905.20 and 16,190.40

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Solution

The fourth proportional to 31,936.80, 47,905.20 and 16,190.40 is: 24,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,936.80 : 47,905.20 = 16,190.40 : x
  2. Step 2: Convert to fraction form
    31,936.80/47,905.20 = 16,190.40/x
  3. Step 3: Cross multiply
    31,936.80x = 47,905.20 × 16,190.40
  4. Step 4: Simplify right side
    31,936.80x = 775,604,350.08
  5. Step 5: Solve for x
    x = 775,604,350.08/31,936.80
  6. Step 6: Final answer
    x = 24,285.60

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1.5x scale

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.