Home / 27,980.20-41,964.14-9,255.80

Finding the Fourth Proportional to 27,980.20, 41,964.14 and 9,255.80

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Solution

The fourth proportional to 27,980.20, 41,964.14 and 9,255.80 is: 13,881.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.20 : 41,964.14 = 9,255.80 : x
  2. Step 2: Convert to fraction form
    27,980.20/41,964.14 = 9,255.80/x
  3. Step 3: Cross multiply
    27,980.20x = 41,964.14 × 9,255.80
  4. Step 4: Simplify right side
    27,980.20x = 388,411,687.01
  5. Step 5: Solve for x
    x = 388,411,687.01/27,980.20
  6. Step 6: Final answer
    x = 13,881.66

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1.5x scale

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.