Home / 20,560.35-30,840.70-17,579.49

Finding the Fourth Proportional to 20,560.35, 30,840.70 and 17,579.49

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Solution

The fourth proportional to 20,560.35, 30,840.70 and 17,579.49 is: 26,369.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.35 : 30,840.70 = 17,579.49 : x
  2. Step 2: Convert to fraction form
    20,560.35/30,840.70 = 17,579.49/x
  3. Step 3: Cross multiply
    20,560.35x = 30,840.70 × 17,579.49
  4. Step 4: Simplify right side
    20,560.35x = 542,163,777.24
  5. Step 5: Solve for x
    x = 542,163,777.24/20,560.35
  6. Step 6: Final answer
    x = 26,369.38

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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.