Home / 20,579.03-30,870.38-5,788.07

Finding the Fourth Proportional to 20,579.03, 30,870.38 and 5,788.07

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Solution

The fourth proportional to 20,579.03, 30,870.38 and 5,788.07 is: 8,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.03 : 30,870.38 = 5,788.07 : x
  2. Step 2: Convert to fraction form
    20,579.03/30,870.38 = 5,788.07/x
  3. Step 3: Cross multiply
    20,579.03x = 30,870.38 × 5,788.07
  4. Step 4: Simplify right side
    20,579.03x = 178,679,968.60
  5. Step 5: Solve for x
    x = 178,679,968.60/20,579.03
  6. Step 6: Final answer
    x = 8,682.62

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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.