Home / 21,273.25-31,929.57-10,750.67

Finding the Fourth Proportional to 21,273.25, 31,929.57 and 10,750.67

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Solution

The fourth proportional to 21,273.25, 31,929.57 and 10,750.67 is: 16,135.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.25 : 31,929.57 = 10,750.67 : x
  2. Step 2: Convert to fraction form
    21,273.25/31,929.57 = 10,750.67/x
  3. Step 3: Cross multiply
    21,273.25x = 31,929.57 × 10,750.67
  4. Step 4: Simplify right side
    21,273.25x = 343,264,216.56
  5. Step 5: Solve for x
    x = 343,264,216.56/21,273.25
  6. Step 6: Final answer
    x = 16,135.96

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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.