Home / 30,719.60-46,020.37-18,838.73

Finding the Fourth Proportional to 30,719.60, 46,020.37 and 18,838.73

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Solution

The fourth proportional to 30,719.60, 46,020.37 and 18,838.73 is: 28,221.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,719.60 : 46,020.37 = 18,838.73 : x
  2. Step 2: Convert to fraction form
    30,719.60/46,020.37 = 18,838.73/x
  3. Step 3: Cross multiply
    30,719.60x = 46,020.37 × 18,838.73
  4. Step 4: Simplify right side
    30,719.60x = 866,965,375.22
  5. Step 5: Solve for x
    x = 866,965,375.22/30,719.60
  6. Step 6: Final answer
    x = 28,221.89

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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.