Home / 20,453.08-28,230.26-12,501.97

Finding the Fourth Proportional to 20,453.08, 28,230.26 and 12,501.97

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Solution

The fourth proportional to 20,453.08, 28,230.26 and 12,501.97 is: 17,255.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.08 : 28,230.26 = 12,501.97 : x
  2. Step 2: Convert to fraction form
    20,453.08/28,230.26 = 12,501.97/x
  3. Step 3: Cross multiply
    20,453.08x = 28,230.26 × 12,501.97
  4. Step 4: Simplify right side
    20,453.08x = 352,933,659.95
  5. Step 5: Solve for x
    x = 352,933,659.95/20,453.08
  6. Step 6: Final answer
    x = 17,255.77

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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.