Home / 20,579.98-30,869.70-5,788.12

Finding the Fourth Proportional to 20,579.98, 30,869.70 and 5,788.12

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Solution

The fourth proportional to 20,579.98, 30,869.70 and 5,788.12 is: 8,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.98 : 30,869.70 = 5,788.12 : x
  2. Step 2: Convert to fraction form
    20,579.98/30,869.70 = 5,788.12/x
  3. Step 3: Cross multiply
    20,579.98x = 30,869.70 × 5,788.12
  4. Step 4: Simplify right side
    20,579.98x = 178,677,527.96
  5. Step 5: Solve for x
    x = 178,677,527.96/20,579.98
  6. Step 6: Final answer
    x = 8,682.10

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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.