Home / 22,707.85-31,336.33-13,148.14

Finding the Fourth Proportional to 22,707.85, 31,336.33 and 13,148.14

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Solution

The fourth proportional to 22,707.85, 31,336.33 and 13,148.14 is: 18,144.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,707.85 : 31,336.33 = 13,148.14 : x
  2. Step 2: Convert to fraction form
    22,707.85/31,336.33 = 13,148.14/x
  3. Step 3: Cross multiply
    22,707.85x = 31,336.33 × 13,148.14
  4. Step 4: Simplify right side
    22,707.85x = 412,014,453.93
  5. Step 5: Solve for x
    x = 412,014,453.93/22,707.85
  6. Step 6: Final answer
    x = 18,144.14

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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.