Home / 20,088.85-30,133.29-8,240.44

Finding the Fourth Proportional to 20,088.85, 30,133.29 and 8,240.44

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Solution

The fourth proportional to 20,088.85, 30,133.29 and 8,240.44 is: 12,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.85 : 30,133.29 = 8,240.44 : x
  2. Step 2: Convert to fraction form
    20,088.85/30,133.29 = 8,240.44/x
  3. Step 3: Cross multiply
    20,088.85x = 30,133.29 × 8,240.44
  4. Step 4: Simplify right side
    20,088.85x = 248,311,568.25
  5. Step 5: Solve for x
    x = 248,311,568.25/20,088.85
  6. Step 6: Final answer
    x = 12,360.67

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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.