Home / 20,378.49-30,566.82-7,230.67

Finding the Fourth Proportional to 20,378.49, 30,566.82 and 7,230.67

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Solution

The fourth proportional to 20,378.49, 30,566.82 and 7,230.67 is: 10,845.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378.49 : 30,566.82 = 7,230.67 : x
  2. Step 2: Convert to fraction form
    20,378.49/30,566.82 = 7,230.67/x
  3. Step 3: Cross multiply
    20,378.49x = 30,566.82 × 7,230.67
  4. Step 4: Simplify right side
    20,378.49x = 221,018,498.39
  5. Step 5: Solve for x
    x = 221,018,498.39/20,378.49
  6. Step 6: Final answer
    x = 10,845.68

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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.