Home / 28,076.79-38,745.96-16,142.46

Finding the Fourth Proportional to 28,076.79, 38,745.96 and 16,142.46

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Solution

The fourth proportional to 28,076.79, 38,745.96 and 16,142.46 is: 22,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.79 : 38,745.96 = 16,142.46 : x
  2. Step 2: Convert to fraction form
    28,076.79/38,745.96 = 16,142.46/x
  3. Step 3: Cross multiply
    28,076.79x = 38,745.96 × 16,142.46
  4. Step 4: Simplify right side
    28,076.79x = 625,455,109.46
  5. Step 5: Solve for x
    x = 625,455,109.46/28,076.79
  6. Step 6: Final answer
    x = 22,276.59

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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.