Home / 27,830.49-41,670.41-20,378.49

Finding the Fourth Proportional to 27,830.49, 41,670.41 and 20,378.49

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Solution

The fourth proportional to 27,830.49, 41,670.41 and 20,378.49 is: 30,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,830.49 : 41,670.41 = 20,378.49 : x
  2. Step 2: Convert to fraction form
    27,830.49/41,670.41 = 20,378.49/x
  3. Step 3: Cross multiply
    27,830.49x = 41,670.41 × 20,378.49
  4. Step 4: Simplify right side
    27,830.49x = 849,179,931.59
  5. Step 5: Solve for x
    x = 849,179,931.59/27,830.49
  6. Step 6: Final answer
    x = 30,512.58

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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.