Home / 20,153.07-30,214.62-12,257.19

Finding the Fourth Proportional to 20,153.07, 30,214.62 and 12,257.19

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Solution

The fourth proportional to 20,153.07, 30,214.62 and 12,257.19 is: 18,376.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.07 : 30,214.62 = 12,257.19 : x
  2. Step 2: Convert to fraction form
    20,153.07/30,214.62 = 12,257.19/x
  3. Step 3: Cross multiply
    20,153.07x = 30,214.62 × 12,257.19
  4. Step 4: Simplify right side
    20,153.07x = 370,346,338.12
  5. Step 5: Solve for x
    x = 370,346,338.12/20,153.07
  6. Step 6: Final answer
    x = 18,376.67

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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.