Home / 21,571.87-32,365.55-8,433.67

Finding the Fourth Proportional to 21,571.87, 32,365.55 and 8,433.67

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Solution

The fourth proportional to 21,571.87, 32,365.55 and 8,433.67 is: 12,653.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.87 : 32,365.55 = 8,433.67 : x
  2. Step 2: Convert to fraction form
    21,571.87/32,365.55 = 8,433.67/x
  3. Step 3: Cross multiply
    21,571.87x = 32,365.55 × 8,433.67
  4. Step 4: Simplify right side
    21,571.87x = 272,960,325.90
  5. Step 5: Solve for x
    x = 272,960,325.90/21,571.87
  6. Step 6: Final answer
    x = 12,653.53

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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.