Home / 28,826.28-39,795.30-20,462.76

Finding the Fourth Proportional to 28,826.28, 39,795.30 and 20,462.76

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Solution

The fourth proportional to 28,826.28, 39,795.30 and 20,462.76 is: 28,249.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,826.28 : 39,795.30 = 20,462.76 : x
  2. Step 2: Convert to fraction form
    28,826.28/39,795.30 = 20,462.76/x
  3. Step 3: Cross multiply
    28,826.28x = 39,795.30 × 20,462.76
  4. Step 4: Simplify right side
    28,826.28x = 814,321,673.03
  5. Step 5: Solve for x
    x = 814,321,673.03/28,826.28
  6. Step 6: Final answer
    x = 28,249.28

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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.