Home / 19,740.60-29,609.76-8,053.56

Finding the Fourth Proportional to 19,740.60, 29,609.76 and 8,053.56

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Solution

The fourth proportional to 19,740.60, 29,609.76 and 8,053.56 is: 12,079.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.60 : 29,609.76 = 8,053.56 : x
  2. Step 2: Convert to fraction form
    19,740.60/29,609.76 = 8,053.56/x
  3. Step 3: Cross multiply
    19,740.60x = 29,609.76 × 8,053.56
  4. Step 4: Simplify right side
    19,740.60x = 238,463,978.75
  5. Step 5: Solve for x
    x = 238,463,978.75/19,740.60
  6. Step 6: Final answer
    x = 12,079.87

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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.