Home / 22,453.99-30,986.72-12,382.79

Finding the Fourth Proportional to 22,453.99, 30,986.72 and 12,382.79

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Solution

The fourth proportional to 22,453.99, 30,986.72 and 12,382.79 is: 17,088.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,453.99 : 30,986.72 = 12,382.79 : x
  2. Step 2: Convert to fraction form
    22,453.99/30,986.72 = 12,382.79/x
  3. Step 3: Cross multiply
    22,453.99x = 30,986.72 × 12,382.79
  4. Step 4: Simplify right side
    22,453.99x = 383,701,876.14
  5. Step 5: Solve for x
    x = 383,701,876.14/22,453.99
  6. Step 6: Final answer
    x = 17,088.36

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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.