Home / 51,238.94-76,873.29-21,247.67

Finding the Fourth Proportional to 51,238.94, 76,873.29 and 21,247.67

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Solution

The fourth proportional to 51,238.94, 76,873.29 and 21,247.67 is: 31,877.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.94 : 76,873.29 = 21,247.67 : x
  2. Step 2: Convert to fraction form
    51,238.94/76,873.29 = 21,247.67/x
  3. Step 3: Cross multiply
    51,238.94x = 76,873.29 × 21,247.67
  4. Step 4: Simplify right side
    51,238.94x = 1,633,378,410.24
  5. Step 5: Solve for x
    x = 1,633,378,410.24/51,238.94
  6. Step 6: Final answer
    x = 31,877.68

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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.