Home / 34,738.81-47,940.45-21,317.48

Finding the Fourth Proportional to 34,738.81, 47,940.45 and 21,317.48

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Solution

The fourth proportional to 34,738.81, 47,940.45 and 21,317.48 is: 29,418.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,738.81 : 47,940.45 = 21,317.48 : x
  2. Step 2: Convert to fraction form
    34,738.81/47,940.45 = 21,317.48/x
  3. Step 3: Cross multiply
    34,738.81x = 47,940.45 × 21,317.48
  4. Step 4: Simplify right side
    34,738.81x = 1,021,969,584.07
  5. Step 5: Solve for x
    x = 1,021,969,584.07/34,738.81
  6. Step 6: Final answer
    x = 29,418.67

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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.