Home / 14,742.42-20,329.26-11,385.78

Finding the Fourth Proportional to 14,742.42, 20,329.26 and 11,385.78

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Solution

The fourth proportional to 14,742.42, 20,329.26 and 11,385.78 is: 15,700.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.42 : 20,329.26 = 11,385.78 : x
  2. Step 2: Convert to fraction form
    14,742.42/20,329.26 = 11,385.78/x
  3. Step 3: Cross multiply
    14,742.42x = 20,329.26 × 11,385.78
  4. Step 4: Simplify right side
    14,742.42x = 231,464,481.92
  5. Step 5: Solve for x
    x = 231,464,481.92/14,742.42
  6. Step 6: Final answer
    x = 15,700.58

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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.