Home / 22,228.06-30,678.06-12,794.80

Finding the Fourth Proportional to 22,228.06, 30,678.06 and 12,794.80

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Solution

The fourth proportional to 22,228.06, 30,678.06 and 12,794.80 is: 17,658.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.06 : 30,678.06 = 12,794.80 : x
  2. Step 2: Convert to fraction form
    22,228.06/30,678.06 = 12,794.80/x
  3. Step 3: Cross multiply
    22,228.06x = 30,678.06 × 12,794.80
  4. Step 4: Simplify right side
    22,228.06x = 392,519,642.09
  5. Step 5: Solve for x
    x = 392,519,642.09/22,228.06
  6. Step 6: Final answer
    x = 17,658.74

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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.