Home / 20,222.57-30,339.73-8,374.16

Finding the Fourth Proportional to 20,222.57, 30,339.73 and 8,374.16

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Solution

The fourth proportional to 20,222.57, 30,339.73 and 8,374.16 is: 12,563.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.57 : 30,339.73 = 8,374.16 : x
  2. Step 2: Convert to fraction form
    20,222.57/30,339.73 = 8,374.16/x
  3. Step 3: Cross multiply
    20,222.57x = 30,339.73 × 8,374.16
  4. Step 4: Simplify right side
    20,222.57x = 254,069,753.38
  5. Step 5: Solve for x
    x = 254,069,753.38/20,222.57
  6. Step 6: Final answer
    x = 12,563.67

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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.