Home / 20,417.42-28,179.09-12,464.25

Finding the Fourth Proportional to 20,417.42, 28,179.09 and 12,464.25

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Solution

The fourth proportional to 20,417.42, 28,179.09 and 12,464.25 is: 17,202.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.42 : 28,179.09 = 12,464.25 : x
  2. Step 2: Convert to fraction form
    20,417.42/28,179.09 = 12,464.25/x
  3. Step 3: Cross multiply
    20,417.42x = 28,179.09 × 12,464.25
  4. Step 4: Simplify right side
    20,417.42x = 351,231,222.53
  5. Step 5: Solve for x
    x = 351,231,222.53/20,417.42
  6. Step 6: Final answer
    x = 17,202.53

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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.