Home / 18,215.26-27,280.36-14,021.99

Finding the Fourth Proportional to 18,215.26, 27,280.36 and 14,021.99

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Solution

The fourth proportional to 18,215.26, 27,280.36 and 14,021.99 is: 21,000.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.26 : 27,280.36 = 14,021.99 : x
  2. Step 2: Convert to fraction form
    18,215.26/27,280.36 = 14,021.99/x
  3. Step 3: Cross multiply
    18,215.26x = 27,280.36 × 14,021.99
  4. Step 4: Simplify right side
    18,215.26x = 382,524,865.01
  5. Step 5: Solve for x
    x = 382,524,865.01/18,215.26
  6. Step 6: Final answer
    x = 21,000.25

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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.