Home / 28,706.45-43,057.34-18,145.67

Finding the Fourth Proportional to 28,706.45, 43,057.34 and 18,145.67

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Solution

The fourth proportional to 28,706.45, 43,057.34 and 18,145.67 is: 27,217.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706.45 : 43,057.34 = 18,145.67 : x
  2. Step 2: Convert to fraction form
    28,706.45/43,057.34 = 18,145.67/x
  3. Step 3: Cross multiply
    28,706.45x = 43,057.34 × 18,145.67
  4. Step 4: Simplify right side
    28,706.45x = 781,304,044.75
  5. Step 5: Solve for x
    x = 781,304,044.75/28,706.45
  6. Step 6: Final answer
    x = 27,217.03

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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.