Home / 20,980.26-28,952.37-12,027.54

Finding the Fourth Proportional to 20,980.26, 28,952.37 and 12,027.54

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Solution

The fourth proportional to 20,980.26, 28,952.37 and 12,027.54 is: 16,597.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980.26 : 28,952.37 = 12,027.54 : x
  2. Step 2: Convert to fraction form
    20,980.26/28,952.37 = 12,027.54/x
  3. Step 3: Cross multiply
    20,980.26x = 28,952.37 × 12,027.54
  4. Step 4: Simplify right side
    20,980.26x = 348,225,788.27
  5. Step 5: Solve for x
    x = 348,225,788.27/20,980.26
  6. Step 6: Final answer
    x = 16,597.78

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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.