Home / 20,464.42-28,237.98-11,511.58

Finding the Fourth Proportional to 20,464.42, 28,237.98 and 11,511.58

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Solution

The fourth proportional to 20,464.42, 28,237.98 and 11,511.58 is: 15,884.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.42 : 28,237.98 = 11,511.58 : x
  2. Step 2: Convert to fraction form
    20,464.42/28,237.98 = 11,511.58/x
  3. Step 3: Cross multiply
    20,464.42x = 28,237.98 × 11,511.58
  4. Step 4: Simplify right side
    20,464.42x = 325,063,765.81
  5. Step 5: Solve for x
    x = 325,063,765.81/20,464.42
  6. Step 6: Final answer
    x = 15,884.34

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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.