Home / 26,938.88-37,139.42-18,861.67

Finding the Fourth Proportional to 26,938.88, 37,139.42 and 18,861.67

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Solution

The fourth proportional to 26,938.88, 37,139.42 and 18,861.67 is: 26,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,938.88 : 37,139.42 = 18,861.67 : x
  2. Step 2: Convert to fraction form
    26,938.88/37,139.42 = 18,861.67/x
  3. Step 3: Cross multiply
    26,938.88x = 37,139.42 × 18,861.67
  4. Step 4: Simplify right side
    26,938.88x = 700,511,624.03
  5. Step 5: Solve for x
    x = 700,511,624.03/26,938.88
  6. Step 6: Final answer
    x = 26,003.74

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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.