Home / 35,188.76-52,775.84-12,986.96

Finding the Fourth Proportional to 35,188.76, 52,775.84 and 12,986.96

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Solution

The fourth proportional to 35,188.76, 52,775.84 and 12,986.96 is: 19,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,188.76 : 52,775.84 = 12,986.96 : x
  2. Step 2: Convert to fraction form
    35,188.76/52,775.84 = 12,986.96/x
  3. Step 3: Cross multiply
    35,188.76x = 52,775.84 × 12,986.96
  4. Step 4: Simplify right side
    35,188.76x = 685,397,723.05
  5. Step 5: Solve for x
    x = 685,397,723.05/35,188.76
  6. Step 6: Final answer
    x = 19,477.75

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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.