Home / 28,480.66-42,742.33-10,728.83

Finding the Fourth Proportional to 28,480.66, 42,742.33 and 10,728.83

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Solution

The fourth proportional to 28,480.66, 42,742.33 and 10,728.83 is: 16,101.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480.66 : 42,742.33 = 10,728.83 : x
  2. Step 2: Convert to fraction form
    28,480.66/42,742.33 = 10,728.83/x
  3. Step 3: Cross multiply
    28,480.66x = 42,742.33 × 10,728.83
  4. Step 4: Simplify right side
    28,480.66x = 458,575,212.54
  5. Step 5: Solve for x
    x = 458,575,212.54/28,480.66
  6. Step 6: Final answer
    x = 16,101.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.