Home / 22,228.42-30,674.92-12,668.88

Finding the Fourth Proportional to 22,228.42, 30,674.92 and 12,668.88

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Solution

The fourth proportional to 22,228.42, 30,674.92 and 12,668.88 is: 17,482.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.42 : 30,674.92 = 12,668.88 : x
  2. Step 2: Convert to fraction form
    22,228.42/30,674.92 = 12,668.88/x
  3. Step 3: Cross multiply
    22,228.42x = 30,674.92 × 12,668.88
  4. Step 4: Simplify right side
    22,228.42x = 388,616,772.13
  5. Step 5: Solve for x
    x = 388,616,772.13/22,228.42
  6. Step 6: Final answer
    x = 17,482.88

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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.