Home / 19,735.86-29,610.78-12,331.65

Finding the Fourth Proportional to 19,735.86, 29,610.78 and 12,331.65

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Solution

The fourth proportional to 19,735.86, 29,610.78 and 12,331.65 is: 18,501.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,735.86 : 29,610.78 = 12,331.65 : x
  2. Step 2: Convert to fraction form
    19,735.86/29,610.78 = 12,331.65/x
  3. Step 3: Cross multiply
    19,735.86x = 29,610.78 × 12,331.65
  4. Step 4: Simplify right side
    19,735.86x = 365,149,713.53
  5. Step 5: Solve for x
    x = 365,149,713.53/19,735.86
  6. Step 6: Final answer
    x = 18,501.84

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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.