Home / 28,550.21-39,407.28-16,615.85

Finding the Fourth Proportional to 28,550.21, 39,407.28 and 16,615.85

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Solution

The fourth proportional to 28,550.21, 39,407.28 and 16,615.85 is: 22,934.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550.21 : 39,407.28 = 16,615.85 : x
  2. Step 2: Convert to fraction form
    28,550.21/39,407.28 = 16,615.85/x
  3. Step 3: Cross multiply
    28,550.21x = 39,407.28 × 16,615.85
  4. Step 4: Simplify right side
    28,550.21x = 654,785,453.39
  5. Step 5: Solve for x
    x = 654,785,453.39/28,550.21
  6. Step 6: Final answer
    x = 22,934.52

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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.