Home / 27,977.16-38,608.34-15,401.90

Finding the Fourth Proportional to 27,977.16, 38,608.34 and 15,401.90

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Solution

The fourth proportional to 27,977.16, 38,608.34 and 15,401.90 is: 21,254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,977.16 : 38,608.34 = 15,401.90 : x
  2. Step 2: Convert to fraction form
    27,977.16/38,608.34 = 15,401.90/x
  3. Step 3: Cross multiply
    27,977.16x = 38,608.34 × 15,401.90
  4. Step 4: Simplify right side
    27,977.16x = 594,641,791.85
  5. Step 5: Solve for x
    x = 594,641,791.85/27,977.16
  6. Step 6: Final answer
    x = 21,254.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.