Home / 27,668.49-38,214.38-20,148.45

Finding the Fourth Proportional to 27,668.49, 38,214.38 and 20,148.45

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Solution

The fourth proportional to 27,668.49, 38,214.38 and 20,148.45 is: 27,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,668.49 : 38,214.38 = 20,148.45 : x
  2. Step 2: Convert to fraction form
    27,668.49/38,214.38 = 20,148.45/x
  3. Step 3: Cross multiply
    27,668.49x = 38,214.38 × 20,148.45
  4. Step 4: Simplify right side
    27,668.49x = 769,960,431.78
  5. Step 5: Solve for x
    x = 769,960,431.78/27,668.49
  6. Step 6: Final answer
    x = 27,828.06

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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.