Home / 28,218.70-42,290.92-15,744.60

Finding the Fourth Proportional to 28,218.70, 42,290.92 and 15,744.60

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Solution

The fourth proportional to 28,218.70, 42,290.92 and 15,744.60 is: 23,596.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.70 : 42,290.92 = 15,744.60 : x
  2. Step 2: Convert to fraction form
    28,218.70/42,290.92 = 15,744.60/x
  3. Step 3: Cross multiply
    28,218.70x = 42,290.92 × 15,744.60
  4. Step 4: Simplify right side
    28,218.70x = 665,853,619.03
  5. Step 5: Solve for x
    x = 665,853,619.03/28,218.70
  6. Step 6: Final answer
    x = 23,596.18

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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.