Home / 19,735.80-29,610.60-12,331.56

Finding the Fourth Proportional to 19,735.80, 29,610.60 and 12,331.56

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Solution

The fourth proportional to 19,735.80, 29,610.60 and 12,331.56 is: 18,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,735.80 : 29,610.60 = 12,331.56 : x
  2. Step 2: Convert to fraction form
    19,735.80/29,610.60 = 12,331.56/x
  3. Step 3: Cross multiply
    19,735.80x = 29,610.60 × 12,331.56
  4. Step 4: Simplify right side
    19,735.80x = 365,144,890.54
  5. Step 5: Solve for x
    x = 365,144,890.54/19,735.80
  6. Step 6: Final answer
    x = 18,501.65

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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.