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Finding the Fourth Proportional to 20,357.64, 30,583.26 and 14,367.51

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Solution

The fourth proportional to 20,357.64, 30,583.26 and 14,367.51 is: 21,584.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357.64 : 30,583.26 = 14,367.51 : x
  2. Step 2: Convert to fraction form
    20,357.64/30,583.26 = 14,367.51/x
  3. Step 3: Cross multiply
    20,357.64x = 30,583.26 × 14,367.51
  4. Step 4: Simplify right side
    20,357.64x = 439,405,293.88
  5. Step 5: Solve for x
    x = 439,405,293.88/20,357.64
  6. Step 6: Final answer
    x = 21,584.29

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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.