Home / 21,222.26-31,836.69-6,427.67

Finding the Fourth Proportional to 21,222.26, 31,836.69 and 6,427.67

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Solution

The fourth proportional to 21,222.26, 31,836.69 and 6,427.67 is: 9,642.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222.26 : 31,836.69 = 6,427.67 : x
  2. Step 2: Convert to fraction form
    21,222.26/31,836.69 = 6,427.67/x
  3. Step 3: Cross multiply
    21,222.26x = 31,836.69 × 6,427.67
  4. Step 4: Simplify right side
    21,222.26x = 204,635,578.03
  5. Step 5: Solve for x
    x = 204,635,578.03/21,222.26
  6. Step 6: Final answer
    x = 9,642.50

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1.5x scale

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.