Home / 23,186.55-31,992.11-13,112.81

Finding the Fourth Proportional to 23,186.55, 31,992.11 and 13,112.81

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Solution

The fourth proportional to 23,186.55, 31,992.11 and 13,112.81 is: 18,092.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,186.55 : 31,992.11 = 13,112.81 : x
  2. Step 2: Convert to fraction form
    23,186.55/31,992.11 = 13,112.81/x
  3. Step 3: Cross multiply
    23,186.55x = 31,992.11 × 13,112.81
  4. Step 4: Simplify right side
    23,186.55x = 419,506,567.29
  5. Step 5: Solve for x
    x = 419,506,567.29/23,186.55
  6. Step 6: Final answer
    x = 18,092.67

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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.