Home / 28,749.24-39,671.76-16,171.56

Finding the Fourth Proportional to 28,749.24, 39,671.76 and 16,171.56

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Solution

The fourth proportional to 28,749.24, 39,671.76 and 16,171.56 is: 22,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.24 : 39,671.76 = 16,171.56 : x
  2. Step 2: Convert to fraction form
    28,749.24/39,671.76 = 16,171.56/x
  3. Step 3: Cross multiply
    28,749.24x = 39,671.76 × 16,171.56
  4. Step 4: Simplify right side
    28,749.24x = 641,554,247.15
  5. Step 5: Solve for x
    x = 641,554,247.15/28,749.24
  6. Step 6: Final answer
    x = 22,315.52

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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.