Home / 20,835.68-28,723.32-14,856.96

Finding the Fourth Proportional to 20,835.68, 28,723.32 and 14,856.96

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Solution

The fourth proportional to 20,835.68, 28,723.32 and 14,856.96 is: 20,481.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.68 : 28,723.32 = 14,856.96 : x
  2. Step 2: Convert to fraction form
    20,835.68/28,723.32 = 14,856.96/x
  3. Step 3: Cross multiply
    20,835.68x = 28,723.32 × 14,856.96
  4. Step 4: Simplify right side
    20,835.68x = 426,741,216.31
  5. Step 5: Solve for x
    x = 426,741,216.31/20,835.68
  6. Step 6: Final answer
    x = 20,481.27

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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.