Home / 20,358.24-30,556.80-12,582.24

Finding the Fourth Proportional to 20,358.24, 30,556.80 and 12,582.24

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Solution

The fourth proportional to 20,358.24, 30,556.80 and 12,582.24 is: 18,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.24 : 30,556.80 = 12,582.24 : x
  2. Step 2: Convert to fraction form
    20,358.24/30,556.80 = 12,582.24/x
  3. Step 3: Cross multiply
    20,358.24x = 30,556.80 × 12,582.24
  4. Step 4: Simplify right side
    20,358.24x = 384,472,991.23
  5. Step 5: Solve for x
    x = 384,472,991.23/20,358.24
  6. Step 6: Final answer
    x = 18,885.37

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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.