Home / 21,238.20-29,306.61-16,205.67

Finding the Fourth Proportional to 21,238.20, 29,306.61 and 16,205.67

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Solution

The fourth proportional to 21,238.20, 29,306.61 and 16,205.67 is: 22,362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,238.20 : 29,306.61 = 16,205.67 : x
  2. Step 2: Convert to fraction form
    21,238.20/29,306.61 = 16,205.67/x
  3. Step 3: Cross multiply
    21,238.20x = 29,306.61 × 16,205.67
  4. Step 4: Simplify right side
    21,238.20x = 474,933,250.48
  5. Step 5: Solve for x
    x = 474,933,250.48/21,238.20
  6. Step 6: Final answer
    x = 22,362.22

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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.