Home / 27,524.60-37,999.71-18,120.50

Finding the Fourth Proportional to 27,524.60, 37,999.71 and 18,120.50

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Solution

The fourth proportional to 27,524.60, 37,999.71 and 18,120.50 is: 25,016.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,524.60 : 37,999.71 = 18,120.50 : x
  2. Step 2: Convert to fraction form
    27,524.60/37,999.71 = 18,120.50/x
  3. Step 3: Cross multiply
    27,524.60x = 37,999.71 × 18,120.50
  4. Step 4: Simplify right side
    27,524.60x = 688,573,745.06
  5. Step 5: Solve for x
    x = 688,573,745.06/27,524.60
  6. Step 6: Final answer
    x = 25,016.67

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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.