Home / 20,722.42-28,588.38-14,438.44

Finding the Fourth Proportional to 20,722.42, 28,588.38 and 14,438.44

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Solution

The fourth proportional to 20,722.42, 28,588.38 and 14,438.44 is: 19,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.42 : 28,588.38 = 14,438.44 : x
  2. Step 2: Convert to fraction form
    20,722.42/28,588.38 = 14,438.44/x
  3. Step 3: Cross multiply
    20,722.42x = 28,588.38 × 14,438.44
  4. Step 4: Simplify right side
    20,722.42x = 412,771,609.33
  5. Step 5: Solve for x
    x = 412,771,609.33/20,722.42
  6. Step 6: Final answer
    x = 19,919.08

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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.