Home / 28,149.26-42,186.96-15,662.84

Finding the Fourth Proportional to 28,149.26, 42,186.96 and 15,662.84

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Solution

The fourth proportional to 28,149.26, 42,186.96 and 15,662.84 is: 23,473.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.26 : 42,186.96 = 15,662.84 : x
  2. Step 2: Convert to fraction form
    28,149.26/42,186.96 = 15,662.84/x
  3. Step 3: Cross multiply
    28,149.26x = 42,186.96 × 15,662.84
  4. Step 4: Simplify right side
    28,149.26x = 660,767,393.63
  5. Step 5: Solve for x
    x = 660,767,393.63/28,149.26
  6. Step 6: Final answer
    x = 23,473.71

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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.