Home / 20,417.88-28,179.73-12,464.73

Finding the Fourth Proportional to 20,417.88, 28,179.73 and 12,464.73

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Solution

The fourth proportional to 20,417.88, 28,179.73 and 12,464.73 is: 17,203.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.88 : 28,179.73 = 12,464.73 : x
  2. Step 2: Convert to fraction form
    20,417.88/28,179.73 = 12,464.73/x
  3. Step 3: Cross multiply
    20,417.88x = 28,179.73 × 12,464.73
  4. Step 4: Simplify right side
    20,417.88x = 351,252,741.50
  5. Step 5: Solve for x
    x = 351,252,741.50/20,417.88
  6. Step 6: Final answer
    x = 17,203.19

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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.