Home / 16,222.52-22,389.42-15,221.84

Finding the Fourth Proportional to 16,222.52, 22,389.42 and 15,221.84

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Solution

The fourth proportional to 16,222.52, 22,389.42 and 15,221.84 is: 21,008.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,222.52 : 22,389.42 = 15,221.84 : x
  2. Step 2: Convert to fraction form
    16,222.52/22,389.42 = 15,221.84/x
  3. Step 3: Cross multiply
    16,222.52x = 22,389.42 × 15,221.84
  4. Step 4: Simplify right side
    16,222.52x = 340,808,168.93
  5. Step 5: Solve for x
    x = 340,808,168.93/16,222.52
  6. Step 6: Final answer
    x = 21,008.34

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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.