Home / 17,055.28-25,587.78-12,379.96

Finding the Fourth Proportional to 17,055.28, 25,587.78 and 12,379.96

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Solution

The fourth proportional to 17,055.28, 25,587.78 and 12,379.96 is: 18,573.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,055.28 : 25,587.78 = 12,379.96 : x
  2. Step 2: Convert to fraction form
    17,055.28/25,587.78 = 12,379.96/x
  3. Step 3: Cross multiply
    17,055.28x = 25,587.78 × 12,379.96
  4. Step 4: Simplify right side
    17,055.28x = 316,775,692.89
  5. Step 5: Solve for x
    x = 316,775,692.89/17,055.28
  6. Step 6: Final answer
    x = 18,573.47

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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.