Home / 20,942.70-31,377.12-11,060.16

Finding the Fourth Proportional to 20,942.70, 31,377.12 and 11,060.16

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Solution

The fourth proportional to 20,942.70, 31,377.12 and 11,060.16 is: 16,570.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,942.70 : 31,377.12 = 11,060.16 : x
  2. Step 2: Convert to fraction form
    20,942.70/31,377.12 = 11,060.16/x
  3. Step 3: Cross multiply
    20,942.70x = 31,377.12 × 11,060.16
  4. Step 4: Simplify right side
    20,942.70x = 347,035,967.54
  5. Step 5: Solve for x
    x = 347,035,967.54/20,942.70
  6. Step 6: Final answer
    x = 16,570.74

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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.