Home / 20,085.22-30,119.19-7,603.06

Finding the Fourth Proportional to 20,085.22, 30,119.19 and 7,603.06

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Solution

The fourth proportional to 20,085.22, 30,119.19 and 7,603.06 is: 11,401.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.22 : 30,119.19 = 7,603.06 : x
  2. Step 2: Convert to fraction form
    20,085.22/30,119.19 = 7,603.06/x
  3. Step 3: Cross multiply
    20,085.22x = 30,119.19 × 7,603.06
  4. Step 4: Simplify right side
    20,085.22x = 228,998,008.72
  5. Step 5: Solve for x
    x = 228,998,008.72/20,085.22
  6. Step 6: Final answer
    x = 11,401.32

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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.