Home / 31,936.70-47,905.14-11,160.20

Finding the Fourth Proportional to 31,936.70, 47,905.14 and 11,160.20

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Solution

The fourth proportional to 31,936.70, 47,905.14 and 11,160.20 is: 16,740.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,936.70 : 47,905.14 = 11,160.20 : x
  2. Step 2: Convert to fraction form
    31,936.70/47,905.14 = 11,160.20/x
  3. Step 3: Cross multiply
    31,936.70x = 47,905.14 × 11,160.20
  4. Step 4: Simplify right side
    31,936.70x = 534,630,943.43
  5. Step 5: Solve for x
    x = 534,630,943.43/31,936.70
  6. Step 6: Final answer
    x = 16,740.33

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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.