Home / 27,738.98-38,280.14-15,163.74

Finding the Fourth Proportional to 27,738.98, 38,280.14 and 15,163.74

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Solution

The fourth proportional to 27,738.98, 38,280.14 and 15,163.74 is: 20,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.98 : 38,280.14 = 15,163.74 : x
  2. Step 2: Convert to fraction form
    27,738.98/38,280.14 = 15,163.74/x
  3. Step 3: Cross multiply
    27,738.98x = 38,280.14 × 15,163.74
  4. Step 4: Simplify right side
    27,738.98x = 580,470,090.12
  5. Step 5: Solve for x
    x = 580,470,090.12/27,738.98
  6. Step 6: Final answer
    x = 20,926.15

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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.