Home / 30,556.10-45,824.40-12,786.73

Finding the Fourth Proportional to 30,556.10, 45,824.40 and 12,786.73

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Solution

The fourth proportional to 30,556.10, 45,824.40 and 12,786.73 is: 19,176.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.10 : 45,824.40 = 12,786.73 : x
  2. Step 2: Convert to fraction form
    30,556.10/45,824.40 = 12,786.73/x
  3. Step 3: Cross multiply
    30,556.10x = 45,824.40 × 12,786.73
  4. Step 4: Simplify right side
    30,556.10x = 585,944,115.65
  5. Step 5: Solve for x
    x = 585,944,115.65/30,556.10
  6. Step 6: Final answer
    x = 19,176.01

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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.