Home / 20,530.31-30,781.62-16,586.42

Finding the Fourth Proportional to 20,530.31, 30,781.62 and 16,586.42

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Solution

The fourth proportional to 20,530.31, 30,781.62 and 16,586.42 is: 24,868.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.31 : 30,781.62 = 16,586.42 : x
  2. Step 2: Convert to fraction form
    20,530.31/30,781.62 = 16,586.42/x
  3. Step 3: Cross multiply
    20,530.31x = 30,781.62 × 16,586.42
  4. Step 4: Simplify right side
    20,530.31x = 510,556,723.69
  5. Step 5: Solve for x
    x = 510,556,723.69/20,530.31
  6. Step 6: Final answer
    x = 24,868.44

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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.