Home / 28,749.58-39,674.38-16,174.32

Finding the Fourth Proportional to 28,749.58, 39,674.38 and 16,174.32

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Solution

The fourth proportional to 28,749.58, 39,674.38 and 16,174.32 is: 22,320.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.58 : 39,674.38 = 16,174.32 : x
  2. Step 2: Convert to fraction form
    28,749.58/39,674.38 = 16,174.32/x
  3. Step 3: Cross multiply
    28,749.58x = 39,674.38 × 16,174.32
  4. Step 4: Simplify right side
    28,749.58x = 641,706,117.92
  5. Step 5: Solve for x
    x = 641,706,117.92/28,749.58
  6. Step 6: Final answer
    x = 22,320.54

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1.5x scale

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.