Home / 20,191.83-30,285.34-5,401.89

Finding the Fourth Proportional to 20,191.83, 30,285.34 and 5,401.89

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Solution

The fourth proportional to 20,191.83, 30,285.34 and 5,401.89 is: 8,102.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.83 : 30,285.34 = 5,401.89 : x
  2. Step 2: Convert to fraction form
    20,191.83/30,285.34 = 5,401.89/x
  3. Step 3: Cross multiply
    20,191.83x = 30,285.34 × 5,401.89
  4. Step 4: Simplify right side
    20,191.83x = 163,598,075.29
  5. Step 5: Solve for x
    x = 163,598,075.29/20,191.83
  6. Step 6: Final answer
    x = 8,102.19

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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.