Home / 14,020.89-21,028.09-4,157.79

Finding the Fourth Proportional to 14,020.89, 21,028.09 and 4,157.79

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Solution

The fourth proportional to 14,020.89, 21,028.09 and 4,157.79 is: 6,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.89 : 21,028.09 = 4,157.79 : x
  2. Step 2: Convert to fraction form
    14,020.89/21,028.09 = 4,157.79/x
  3. Step 3: Cross multiply
    14,020.89x = 21,028.09 × 4,157.79
  4. Step 4: Simplify right side
    14,020.89x = 87,430,382.32
  5. Step 5: Solve for x
    x = 87,430,382.32/14,020.89
  6. Step 6: Final answer
    x = 6,235.72

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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.