Home / 20,477.14-28,190.18-19,536.72

Finding the Fourth Proportional to 20,477.14, 28,190.18 and 19,536.72

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Solution

The fourth proportional to 20,477.14, 28,190.18 and 19,536.72 is: 26,895.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.14 : 28,190.18 = 19,536.72 : x
  2. Step 2: Convert to fraction form
    20,477.14/28,190.18 = 19,536.72/x
  3. Step 3: Cross multiply
    20,477.14x = 28,190.18 × 19,536.72
  4. Step 4: Simplify right side
    20,477.14x = 550,743,653.41
  5. Step 5: Solve for x
    x = 550,743,653.41/20,477.14
  6. Step 6: Final answer
    x = 26,895.54

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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.