Home / 28,182.09-42,245.31-15,708.09

Finding the Fourth Proportional to 28,182.09, 42,245.31 and 15,708.09

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Solution

The fourth proportional to 28,182.09, 42,245.31 and 15,708.09 is: 23,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.09 : 42,245.31 = 15,708.09 : x
  2. Step 2: Convert to fraction form
    28,182.09/42,245.31 = 15,708.09/x
  3. Step 3: Cross multiply
    28,182.09x = 42,245.31 × 15,708.09
  4. Step 4: Simplify right side
    28,182.09x = 663,593,131.56
  5. Step 5: Solve for x
    x = 663,593,131.56/28,182.09
  6. Step 6: Final answer
    x = 23,546.63

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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.