Home / 20,810.62-31,212.06-6,015.88

Finding the Fourth Proportional to 20,810.62, 31,212.06 and 6,015.88

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Solution

The fourth proportional to 20,810.62, 31,212.06 and 6,015.88 is: 9,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810.62 : 31,212.06 = 6,015.88 : x
  2. Step 2: Convert to fraction form
    20,810.62/31,212.06 = 6,015.88/x
  3. Step 3: Cross multiply
    20,810.62x = 31,212.06 × 6,015.88
  4. Step 4: Simplify right side
    20,810.62x = 187,768,007.51
  5. Step 5: Solve for x
    x = 187,768,007.51/20,810.62
  6. Step 6: Final answer
    x = 9,022.70

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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.