Home / 27,768.25-38,319.23-15,835.43

Finding the Fourth Proportional to 27,768.25, 38,319.23 and 15,835.43

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Solution

The fourth proportional to 27,768.25, 38,319.23 and 15,835.43 is: 21,852.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,768.25 : 38,319.23 = 15,835.43 : x
  2. Step 2: Convert to fraction form
    27,768.25/38,319.23 = 15,835.43/x
  3. Step 3: Cross multiply
    27,768.25x = 38,319.23 × 15,835.43
  4. Step 4: Simplify right side
    27,768.25x = 606,801,213.55
  5. Step 5: Solve for x
    x = 606,801,213.55/27,768.25
  6. Step 6: Final answer
    x = 21,852.34

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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.