Home / 20,734.68-28,613.96-11,782.67

Finding the Fourth Proportional to 20,734.68, 28,613.96 and 11,782.67

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Solution

The fourth proportional to 20,734.68, 28,613.96 and 11,782.67 is: 16,260.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.68 : 28,613.96 = 11,782.67 : x
  2. Step 2: Convert to fraction form
    20,734.68/28,613.96 = 11,782.67/x
  3. Step 3: Cross multiply
    20,734.68x = 28,613.96 × 11,782.67
  4. Step 4: Simplify right side
    20,734.68x = 337,148,848.07
  5. Step 5: Solve for x
    x = 337,148,848.07/20,734.68
  6. Step 6: Final answer
    x = 16,260.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.