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Finding the Fourth Proportional to 20,800.70, 31,205.10 and 6,010.10

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Solution

The fourth proportional to 20,800.70, 31,205.10 and 6,010.10 is: 9,016.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800.70 : 31,205.10 = 6,010.10 : x
  2. Step 2: Convert to fraction form
    20,800.70/31,205.10 = 6,010.10/x
  3. Step 3: Cross multiply
    20,800.70x = 31,205.10 × 6,010.10
  4. Step 4: Simplify right side
    20,800.70x = 187,545,771.51
  5. Step 5: Solve for x
    x = 187,545,771.51/20,800.70
  6. Step 6: Final answer
    x = 9,016.32

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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.