Home / 20,235.57-30,334.86-7,080.76

Finding the Fourth Proportional to 20,235.57, 30,334.86 and 7,080.76

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Solution

The fourth proportional to 20,235.57, 30,334.86 and 7,080.76 is: 10,614.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.57 : 30,334.86 = 7,080.76 : x
  2. Step 2: Convert to fraction form
    20,235.57/30,334.86 = 7,080.76/x
  3. Step 3: Cross multiply
    20,235.57x = 30,334.86 × 7,080.76
  4. Step 4: Simplify right side
    20,235.57x = 214,793,901.21
  5. Step 5: Solve for x
    x = 214,793,901.21/20,235.57
  6. Step 6: Final answer
    x = 10,614.67

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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.