Home / 30,367.80-45,556.44-12,837.72

Finding the Fourth Proportional to 30,367.80, 45,556.44 and 12,837.72

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Solution

The fourth proportional to 30,367.80, 45,556.44 and 12,837.72 is: 19,258.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,367.80 : 45,556.44 = 12,837.72 : x
  2. Step 2: Convert to fraction form
    30,367.80/45,556.44 = 12,837.72/x
  3. Step 3: Cross multiply
    30,367.80x = 45,556.44 × 12,837.72
  4. Step 4: Simplify right side
    30,367.80x = 584,840,820.92
  5. Step 5: Solve for x
    x = 584,840,820.92/30,367.80
  6. Step 6: Final answer
    x = 19,258.58

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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.