Home / 20,191.46-30,285.06-5,401.87

Finding the Fourth Proportional to 20,191.46, 30,285.06 and 5,401.87

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Solution

The fourth proportional to 20,191.46, 30,285.06 and 5,401.87 is: 8,102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.46 : 30,285.06 = 5,401.87 : x
  2. Step 2: Convert to fraction form
    20,191.46/30,285.06 = 5,401.87/x
  3. Step 3: Cross multiply
    20,191.46x = 30,285.06 × 5,401.87
  4. Step 4: Simplify right side
    20,191.46x = 163,595,957.06
  5. Step 5: Solve for x
    x = 163,595,957.06/20,191.46
  6. Step 6: Final answer
    x = 8,102.24

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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.