Home / 20,560.26-28,372.96-11,607.56

Finding the Fourth Proportional to 20,560.26, 28,372.96 and 11,607.56

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Solution

The fourth proportional to 20,560.26, 28,372.96 and 11,607.56 is: 16,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.26 : 28,372.96 = 11,607.56 : x
  2. Step 2: Convert to fraction form
    20,560.26/28,372.96 = 11,607.56/x
  3. Step 3: Cross multiply
    20,560.26x = 28,372.96 × 11,607.56
  4. Step 4: Simplify right side
    20,560.26x = 329,340,835.58
  5. Step 5: Solve for x
    x = 329,340,835.58/20,560.26
  6. Step 6: Final answer
    x = 16,018.32

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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.