Home / 28,102.20-38,764.80-18,027.06

Finding the Fourth Proportional to 28,102.20, 38,764.80 and 18,027.06

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Solution

The fourth proportional to 28,102.20, 38,764.80 and 18,027.06 is: 24,866.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.20 : 38,764.80 = 18,027.06 : x
  2. Step 2: Convert to fraction form
    28,102.20/38,764.80 = 18,027.06/x
  3. Step 3: Cross multiply
    28,102.20x = 38,764.80 × 18,027.06
  4. Step 4: Simplify right side
    28,102.20x = 698,815,375.49
  5. Step 5: Solve for x
    x = 698,815,375.49/28,102.20
  6. Step 6: Final answer
    x = 24,866.93

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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.