Home / 21,628.54-32,384.19-11,218.42

Finding the Fourth Proportional to 21,628.54, 32,384.19 and 11,218.42

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Solution

The fourth proportional to 21,628.54, 32,384.19 and 11,218.42 is: 16,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.54 : 32,384.19 = 11,218.42 : x
  2. Step 2: Convert to fraction form
    21,628.54/32,384.19 = 11,218.42/x
  3. Step 3: Cross multiply
    21,628.54x = 32,384.19 × 11,218.42
  4. Step 4: Simplify right side
    21,628.54x = 363,299,395.02
  5. Step 5: Solve for x
    x = 363,299,395.02/21,628.54
  6. Step 6: Final answer
    x = 16,797.22

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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.