Home / 20,433.60-28,184.36-19,747.94

Finding the Fourth Proportional to 20,433.60, 28,184.36 and 19,747.94

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Solution

The fourth proportional to 20,433.60, 28,184.36 and 19,747.94 is: 27,238.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.60 : 28,184.36 = 19,747.94 : x
  2. Step 2: Convert to fraction form
    20,433.60/28,184.36 = 19,747.94/x
  3. Step 3: Cross multiply
    20,433.60x = 28,184.36 × 19,747.94
  4. Step 4: Simplify right side
    20,433.60x = 556,582,810.56
  5. Step 5: Solve for x
    x = 556,582,810.56/20,433.60
  6. Step 6: Final answer
    x = 27,238.61

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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.