Home / 28,244-38,976.72-15,668.84

Finding the Fourth Proportional to 28,244, 38,976.72 and 15,668.84

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Solution

The fourth proportional to 28,244, 38,976.72 and 15,668.84 is: 21,623.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244 : 38,976.72 = 15,668.84 : x
  2. Step 2: Convert to fraction form
    28,244/38,976.72 = 15,668.84/x
  3. Step 3: Cross multiply
    28,244x = 38,976.72 × 15,668.84
  4. Step 4: Simplify right side
    28,244x = 610,719,989.40
  5. Step 5: Solve for x
    x = 610,719,989.40/28,244
  6. Step 6: Final answer
    x = 21,623.00

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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.