Home / 20,804.06-28,709.02-11,854.45

Finding the Fourth Proportional to 20,804.06, 28,709.02 and 11,854.45

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Solution

The fourth proportional to 20,804.06, 28,709.02 and 11,854.45 is: 16,358.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.06 : 28,709.02 = 11,854.45 : x
  2. Step 2: Convert to fraction form
    20,804.06/28,709.02 = 11,854.45/x
  3. Step 3: Cross multiply
    20,804.06x = 28,709.02 × 11,854.45
  4. Step 4: Simplify right side
    20,804.06x = 340,329,600.00
  5. Step 5: Solve for x
    x = 340,329,600.00/20,804.06
  6. Step 6: Final answer
    x = 16,358.81

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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.