Home / 27,647.12-38,152.92-15,072.56

Finding the Fourth Proportional to 27,647.12, 38,152.92 and 15,072.56

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Solution

The fourth proportional to 27,647.12, 38,152.92 and 15,072.56 is: 20,800.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,647.12 : 38,152.92 = 15,072.56 : x
  2. Step 2: Convert to fraction form
    27,647.12/38,152.92 = 15,072.56/x
  3. Step 3: Cross multiply
    27,647.12x = 38,152.92 × 15,072.56
  4. Step 4: Simplify right side
    27,647.12x = 575,062,175.88
  5. Step 5: Solve for x
    x = 575,062,175.88/27,647.12
  6. Step 6: Final answer
    x = 20,800.08

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1.5x scale

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.