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Finding the Fourth Proportional to 27,999.60, 41,950.80 and 18,133.80

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Solution

The fourth proportional to 27,999.60, 41,950.80 and 18,133.80 is: 27,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.60 : 41,950.80 = 18,133.80 : x
  2. Step 2: Convert to fraction form
    27,999.60/41,950.80 = 18,133.80/x
  3. Step 3: Cross multiply
    27,999.60x = 41,950.80 × 18,133.80
  4. Step 4: Simplify right side
    27,999.60x = 760,727,417.04
  5. Step 5: Solve for x
    x = 760,727,417.04/27,999.60
  6. Step 6: Final answer
    x = 27,169.22

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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.