Home / 20,579.13-30,868.43-4,996.89

Finding the Fourth Proportional to 20,579.13, 30,868.43 and 4,996.89

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Solution

The fourth proportional to 20,579.13, 30,868.43 and 4,996.89 is: 7,495.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.13 : 30,868.43 = 4,996.89 : x
  2. Step 2: Convert to fraction form
    20,579.13/30,868.43 = 4,996.89/x
  3. Step 3: Cross multiply
    20,579.13x = 30,868.43 × 4,996.89
  4. Step 4: Simplify right side
    20,579.13x = 154,246,124.20
  5. Step 5: Solve for x
    x = 154,246,124.20/20,579.13
  6. Step 6: Final answer
    x = 7,495.27

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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.