Home / 20,559.36-30,856.32-16,481.28

Finding the Fourth Proportional to 20,559.36, 30,856.32 and 16,481.28

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Solution

The fourth proportional to 20,559.36, 30,856.32 and 16,481.28 is: 24,735.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.36 : 30,856.32 = 16,481.28 : x
  2. Step 2: Convert to fraction form
    20,559.36/30,856.32 = 16,481.28/x
  3. Step 3: Cross multiply
    20,559.36x = 30,856.32 × 16,481.28
  4. Step 4: Simplify right side
    20,559.36x = 508,551,649.69
  5. Step 5: Solve for x
    x = 508,551,649.69/20,559.36
  6. Step 6: Final answer
    x = 24,735.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.