Home / 21,742.89-32,626.88-11,747.67

Finding the Fourth Proportional to 21,742.89, 32,626.88 and 11,747.67

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Solution

The fourth proportional to 21,742.89, 32,626.88 and 11,747.67 is: 17,628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742.89 : 32,626.88 = 11,747.67 : x
  2. Step 2: Convert to fraction form
    21,742.89/32,626.88 = 11,747.67/x
  3. Step 3: Cross multiply
    21,742.89x = 32,626.88 × 11,747.67
  4. Step 4: Simplify right side
    21,742.89x = 383,289,675.71
  5. Step 5: Solve for x
    x = 383,289,675.71/21,742.89
  6. Step 6: Final answer
    x = 17,628.28

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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.