Home / 20,533.35-30,790.31-9,436.76

Finding the Fourth Proportional to 20,533.35, 30,790.31 and 9,436.76

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Solution

The fourth proportional to 20,533.35, 30,790.31 and 9,436.76 is: 14,150.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.35 : 30,790.31 = 9,436.76 : x
  2. Step 2: Convert to fraction form
    20,533.35/30,790.31 = 9,436.76/x
  3. Step 3: Cross multiply
    20,533.35x = 30,790.31 × 9,436.76
  4. Step 4: Simplify right side
    20,533.35x = 290,560,733.21
  5. Step 5: Solve for x
    x = 290,560,733.21/20,533.35
  6. Step 6: Final answer
    x = 14,150.67

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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.