Home / 20,294.08-28,004.79-11,339.83

Finding the Fourth Proportional to 20,294.08, 28,004.79 and 11,339.83

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Solution

The fourth proportional to 20,294.08, 28,004.79 and 11,339.83 is: 15,648.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.08 : 28,004.79 = 11,339.83 : x
  2. Step 2: Convert to fraction form
    20,294.08/28,004.79 = 11,339.83/x
  3. Step 3: Cross multiply
    20,294.08x = 28,004.79 × 11,339.83
  4. Step 4: Simplify right side
    20,294.08x = 317,569,571.53
  5. Step 5: Solve for x
    x = 317,569,571.53/20,294.08
  6. Step 6: Final answer
    x = 15,648.39

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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.