Home / 20,267.70-30,401.55-5,476.20

Finding the Fourth Proportional to 20,267.70, 30,401.55 and 5,476.20

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Solution

The fourth proportional to 20,267.70, 30,401.55 and 5,476.20 is: 8,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.70 : 30,401.55 = 5,476.20 : x
  2. Step 2: Convert to fraction form
    20,267.70/30,401.55 = 5,476.20/x
  3. Step 3: Cross multiply
    20,267.70x = 30,401.55 × 5,476.20
  4. Step 4: Simplify right side
    20,267.70x = 166,484,968.11
  5. Step 5: Solve for x
    x = 166,484,968.11/20,267.70
  6. Step 6: Final answer
    x = 8,214.30

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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.