Home / 20,560.48-30,840.89-17,579.61

Finding the Fourth Proportional to 20,560.48, 30,840.89 and 17,579.61

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Solution

The fourth proportional to 20,560.48, 30,840.89 and 17,579.61 is: 26,369.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.48 : 30,840.89 = 17,579.61 : x
  2. Step 2: Convert to fraction form
    20,560.48/30,840.89 = 17,579.61/x
  3. Step 3: Cross multiply
    20,560.48x = 30,840.89 × 17,579.61
  4. Step 4: Simplify right side
    20,560.48x = 542,170,730.35
  5. Step 5: Solve for x
    x = 542,170,730.35/20,560.48
  6. Step 6: Final answer
    x = 26,369.56

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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.