Home / 28,265.25-42,183.20-27,120.89

Finding the Fourth Proportional to 28,265.25, 42,183.20 and 27,120.89

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Solution

The fourth proportional to 28,265.25, 42,183.20 and 27,120.89 is: 40,475.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.25 : 42,183.20 = 27,120.89 : x
  2. Step 2: Convert to fraction form
    28,265.25/42,183.20 = 27,120.89/x
  3. Step 3: Cross multiply
    28,265.25x = 42,183.20 × 27,120.89
  4. Step 4: Simplify right side
    28,265.25x = 1,144,045,927.05
  5. Step 5: Solve for x
    x = 1,144,045,927.05/28,265.25
  6. Step 6: Final answer
    x = 40,475.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.