Home / 27,628.98-38,114.88-18,679.56

Finding the Fourth Proportional to 27,628.98, 38,114.88 and 18,679.56

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Solution

The fourth proportional to 27,628.98, 38,114.88 and 18,679.56 is: 25,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,628.98 : 38,114.88 = 18,679.56 : x
  2. Step 2: Convert to fraction form
    27,628.98/38,114.88 = 18,679.56/x
  3. Step 3: Cross multiply
    27,628.98x = 38,114.88 × 18,679.56
  4. Step 4: Simplify right side
    27,628.98x = 711,969,187.85
  5. Step 5: Solve for x
    x = 711,969,187.85/27,628.98
  6. Step 6: Final answer
    x = 25,768.93

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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.