Home / 20,804.04-28,711.17-11,851.92

Finding the Fourth Proportional to 20,804.04, 28,711.17 and 11,851.92

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Solution

The fourth proportional to 20,804.04, 28,711.17 and 11,851.92 is: 16,356.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.04 : 28,711.17 = 11,851.92 : x
  2. Step 2: Convert to fraction form
    20,804.04/28,711.17 = 11,851.92/x
  3. Step 3: Cross multiply
    20,804.04x = 28,711.17 × 11,851.92
  4. Step 4: Simplify right side
    20,804.04x = 340,282,489.95
  5. Step 5: Solve for x
    x = 340,282,489.95/20,804.04
  6. Step 6: Final answer
    x = 16,356.56

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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.