Home / 20,579.58-28,401.57-17,216.46

Finding the Fourth Proportional to 20,579.58, 28,401.57 and 17,216.46

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Solution

The fourth proportional to 20,579.58, 28,401.57 and 17,216.46 is: 23,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.58 : 28,401.57 = 17,216.46 : x
  2. Step 2: Convert to fraction form
    20,579.58/28,401.57 = 17,216.46/x
  3. Step 3: Cross multiply
    20,579.58x = 28,401.57 × 17,216.46
  4. Step 4: Simplify right side
    20,579.58x = 488,974,493.84
  5. Step 5: Solve for x
    x = 488,974,493.84/20,579.58
  6. Step 6: Final answer
    x = 23,760.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.