Home / 20,087.76-30,119.48-8,992.38

Finding the Fourth Proportional to 20,087.76, 30,119.48 and 8,992.38

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Solution

The fourth proportional to 20,087.76, 30,119.48 and 8,992.38 is: 13,483.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.76 : 30,119.48 = 8,992.38 : x
  2. Step 2: Convert to fraction form
    20,087.76/30,119.48 = 8,992.38/x
  3. Step 3: Cross multiply
    20,087.76x = 30,119.48 × 8,992.38
  4. Step 4: Simplify right side
    20,087.76x = 270,845,614.00
  5. Step 5: Solve for x
    x = 270,845,614.00/20,087.76
  6. Step 6: Final answer
    x = 13,483.12

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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.