Home / 20,579.96-30,869.98-4,997.56

Finding the Fourth Proportional to 20,579.96, 30,869.98 and 4,997.56

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Solution

The fourth proportional to 20,579.96, 30,869.98 and 4,997.56 is: 7,496.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.96 : 30,869.98 = 4,997.56 : x
  2. Step 2: Convert to fraction form
    20,579.96/30,869.98 = 4,997.56/x
  3. Step 3: Cross multiply
    20,579.96x = 30,869.98 × 4,997.56
  4. Step 4: Simplify right side
    20,579.96x = 154,274,577.25
  5. Step 5: Solve for x
    x = 154,274,577.25/20,579.96
  6. Step 6: Final answer
    x = 7,496.35

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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.