Home / 20,806.86-31,210.52-6,015.92

Finding the Fourth Proportional to 20,806.86, 31,210.52 and 6,015.92

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Solution

The fourth proportional to 20,806.86, 31,210.52 and 6,015.92 is: 9,023.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806.86 : 31,210.52 = 6,015.92 : x
  2. Step 2: Convert to fraction form
    20,806.86/31,210.52 = 6,015.92/x
  3. Step 3: Cross multiply
    20,806.86x = 31,210.52 × 6,015.92
  4. Step 4: Simplify right side
    20,806.86x = 187,759,805.35
  5. Step 5: Solve for x
    x = 187,759,805.35/20,806.86
  6. Step 6: Final answer
    x = 9,023.94

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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.