Home / 28,268.67-42,408.47-10,750.80

Finding the Fourth Proportional to 28,268.67, 42,408.47 and 10,750.80

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Solution

The fourth proportional to 28,268.67, 42,408.47 and 10,750.80 is: 16,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.67 : 42,408.47 = 10,750.80 : x
  2. Step 2: Convert to fraction form
    28,268.67/42,408.47 = 10,750.80/x
  3. Step 3: Cross multiply
    28,268.67x = 42,408.47 × 10,750.80
  4. Step 4: Simplify right side
    28,268.67x = 455,924,979.28
  5. Step 5: Solve for x
    x = 455,924,979.28/28,268.67
  6. Step 6: Final answer
    x = 16,128.28

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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.