Home / 26,380.81-39,536.79-20,117.89

Finding the Fourth Proportional to 26,380.81, 39,536.79 and 20,117.89

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Solution

The fourth proportional to 26,380.81, 39,536.79 and 20,117.89 is: 30,150.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,380.81 : 39,536.79 = 20,117.89 : x
  2. Step 2: Convert to fraction form
    26,380.81/39,536.79 = 20,117.89/x
  3. Step 3: Cross multiply
    26,380.81x = 39,536.79 × 20,117.89
  4. Step 4: Simplify right side
    26,380.81x = 795,396,792.17
  5. Step 5: Solve for x
    x = 795,396,792.17/26,380.81
  6. Step 6: Final answer
    x = 30,150.58

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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.