Home / 28,600.06-42,900.40-7,823.56

Finding the Fourth Proportional to 28,600.06, 42,900.40 and 7,823.56

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Solution

The fourth proportional to 28,600.06, 42,900.40 and 7,823.56 is: 11,735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.06 : 42,900.40 = 7,823.56 : x
  2. Step 2: Convert to fraction form
    28,600.06/42,900.40 = 7,823.56/x
  3. Step 3: Cross multiply
    28,600.06x = 42,900.40 × 7,823.56
  4. Step 4: Simplify right side
    28,600.06x = 335,633,853.42
  5. Step 5: Solve for x
    x = 335,633,853.42/28,600.06
  6. Step 6: Final answer
    x = 11,735.42

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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.