Home / 28,749.79-39,674.65-16,174.54

Finding the Fourth Proportional to 28,749.79, 39,674.65 and 16,174.54

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Solution

The fourth proportional to 28,749.79, 39,674.65 and 16,174.54 is: 22,320.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.79 : 39,674.65 = 16,174.54 : x
  2. Step 2: Convert to fraction form
    28,749.79/39,674.65 = 16,174.54/x
  3. Step 3: Cross multiply
    28,749.79x = 39,674.65 × 16,174.54
  4. Step 4: Simplify right side
    28,749.79x = 641,719,213.41
  5. Step 5: Solve for x
    x = 641,719,213.41/28,749.79
  6. Step 6: Final answer
    x = 22,320.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.