Home / 39,216.45-54,118.77-21,311.67

Finding the Fourth Proportional to 39,216.45, 54,118.77 and 21,311.67

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Solution

The fourth proportional to 39,216.45, 54,118.77 and 21,311.67 is: 29,410.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,216.45 : 54,118.77 = 21,311.67 : x
  2. Step 2: Convert to fraction form
    39,216.45/54,118.77 = 21,311.67/x
  3. Step 3: Cross multiply
    39,216.45x = 54,118.77 × 21,311.67
  4. Step 4: Simplify right side
    39,216.45x = 1,153,361,367.05
  5. Step 5: Solve for x
    x = 1,153,361,367.05/39,216.45
  6. Step 6: Final answer
    x = 29,410.14

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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.