Home / 28,451.07-39,256.61-16,349.21

Finding the Fourth Proportional to 28,451.07, 39,256.61 and 16,349.21

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Solution

The fourth proportional to 28,451.07, 39,256.61 and 16,349.21 is: 22,558.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.07 : 39,256.61 = 16,349.21 : x
  2. Step 2: Convert to fraction form
    28,451.07/39,256.61 = 16,349.21/x
  3. Step 3: Cross multiply
    28,451.07x = 39,256.61 × 16,349.21
  4. Step 4: Simplify right side
    28,451.07x = 641,814,560.78
  5. Step 5: Solve for x
    x = 641,814,560.78/28,451.07
  6. Step 6: Final answer
    x = 22,558.54

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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.