Home / 22,719.25-31,352.23-12,647.67

Finding the Fourth Proportional to 22,719.25, 31,352.23 and 12,647.67

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Solution

The fourth proportional to 22,719.25, 31,352.23 and 12,647.67 is: 17,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.25 : 31,352.23 = 12,647.67 : x
  2. Step 2: Convert to fraction form
    22,719.25/31,352.23 = 12,647.67/x
  3. Step 3: Cross multiply
    22,719.25x = 31,352.23 × 12,647.67
  4. Step 4: Simplify right side
    22,719.25x = 396,532,658.80
  5. Step 5: Solve for x
    x = 396,532,658.80/22,719.25
  6. Step 6: Final answer
    x = 17,453.60

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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.