Home / 22,143.63-30,556.68-12,454.54

Finding the Fourth Proportional to 22,143.63, 30,556.68 and 12,454.54

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Solution

The fourth proportional to 22,143.63, 30,556.68 and 12,454.54 is: 17,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.63 : 30,556.68 = 12,454.54 : x
  2. Step 2: Convert to fraction form
    22,143.63/30,556.68 = 12,454.54/x
  3. Step 3: Cross multiply
    22,143.63x = 30,556.68 × 12,454.54
  4. Step 4: Simplify right side
    22,143.63x = 380,569,270.23
  5. Step 5: Solve for x
    x = 380,569,270.23/22,143.63
  6. Step 6: Final answer
    x = 17,186.40

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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.