Home / 26,190.50-39,263.74-21,247.88

Finding the Fourth Proportional to 26,190.50, 39,263.74 and 21,247.88

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Solution

The fourth proportional to 26,190.50, 39,263.74 and 21,247.88 is: 31,853.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,190.50 : 39,263.74 = 21,247.88 : x
  2. Step 2: Convert to fraction form
    26,190.50/39,263.74 = 21,247.88/x
  3. Step 3: Cross multiply
    26,190.50x = 39,263.74 × 21,247.88
  4. Step 4: Simplify right side
    26,190.50x = 834,270,986.43
  5. Step 5: Solve for x
    x = 834,270,986.43/26,190.50
  6. Step 6: Final answer
    x = 31,853.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.