Home / 20,804.16-28,707.84-11,849.28

Finding the Fourth Proportional to 20,804.16, 28,707.84 and 11,849.28

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Solution

The fourth proportional to 20,804.16, 28,707.84 and 11,849.28 is: 16,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.16 : 28,707.84 = 11,849.28 : x
  2. Step 2: Convert to fraction form
    20,804.16/28,707.84 = 11,849.28/x
  3. Step 3: Cross multiply
    20,804.16x = 28,707.84 × 11,849.28
  4. Step 4: Simplify right side
    20,804.16x = 340,167,234.36
  5. Step 5: Solve for x
    x = 340,167,234.36/20,804.16
  6. Step 6: Final answer
    x = 16,350.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.