Home / 20,908.68-28,854.58-11,833.34

Finding the Fourth Proportional to 20,908.68, 28,854.58 and 11,833.34

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Solution

The fourth proportional to 20,908.68, 28,854.58 and 11,833.34 is: 16,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.68 : 28,854.58 = 11,833.34 : x
  2. Step 2: Convert to fraction form
    20,908.68/28,854.58 = 11,833.34/x
  3. Step 3: Cross multiply
    20,908.68x = 28,854.58 × 11,833.34
  4. Step 4: Simplify right side
    20,908.68x = 341,446,055.70
  5. Step 5: Solve for x
    x = 341,446,055.70/20,908.68
  6. Step 6: Final answer
    x = 16,330.35

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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.