Home / 19,587.12-29,380.92-5,736.40

Finding the Fourth Proportional to 19,587.12, 29,380.92 and 5,736.40

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Solution

The fourth proportional to 19,587.12, 29,380.92 and 5,736.40 is: 8,604.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.12 : 29,380.92 = 5,736.40 : x
  2. Step 2: Convert to fraction form
    19,587.12/29,380.92 = 5,736.40/x
  3. Step 3: Cross multiply
    19,587.12x = 29,380.92 × 5,736.40
  4. Step 4: Simplify right side
    19,587.12x = 168,540,709.49
  5. Step 5: Solve for x
    x = 168,540,709.49/19,587.12
  6. Step 6: Final answer
    x = 8,604.67

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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.