Home / 20,854.16-28,791.81-16,065.08

Finding the Fourth Proportional to 20,854.16, 28,791.81 and 16,065.08

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Solution

The fourth proportional to 20,854.16, 28,791.81 and 16,065.08 is: 22,179.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,854.16 : 28,791.81 = 16,065.08 : x
  2. Step 2: Convert to fraction form
    20,854.16/28,791.81 = 16,065.08/x
  3. Step 3: Cross multiply
    20,854.16x = 28,791.81 × 16,065.08
  4. Step 4: Simplify right side
    20,854.16x = 462,542,730.99
  5. Step 5: Solve for x
    x = 462,542,730.99/20,854.16
  6. Step 6: Final answer
    x = 22,179.88

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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.