Home / 20,164.43-30,220.37-10,295.39

Finding the Fourth Proportional to 20,164.43, 30,220.37 and 10,295.39

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Solution

The fourth proportional to 20,164.43, 30,220.37 and 10,295.39 is: 15,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.43 : 30,220.37 = 10,295.39 : x
  2. Step 2: Convert to fraction form
    20,164.43/30,220.37 = 10,295.39/x
  3. Step 3: Cross multiply
    20,164.43x = 30,220.37 × 10,295.39
  4. Step 4: Simplify right side
    20,164.43x = 311,130,443.62
  5. Step 5: Solve for x
    x = 311,130,443.62/20,164.43
  6. Step 6: Final answer
    x = 15,429.67

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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.