Home / 20,904.57-28,849.73-11,829.94

Finding the Fourth Proportional to 20,904.57, 28,849.73 and 11,829.94

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Solution

The fourth proportional to 20,904.57, 28,849.73 and 11,829.94 is: 16,326.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.57 : 28,849.73 = 11,829.94 : x
  2. Step 2: Convert to fraction form
    20,904.57/28,849.73 = 11,829.94/x
  3. Step 3: Cross multiply
    20,904.57x = 28,849.73 × 11,829.94
  4. Step 4: Simplify right side
    20,904.57x = 341,290,624.60
  5. Step 5: Solve for x
    x = 341,290,624.60/20,904.57
  6. Step 6: Final answer
    x = 16,326.12

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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.