Home / 28,760.75-39,689.45-16,662.88

Finding the Fourth Proportional to 28,760.75, 39,689.45 and 16,662.88

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Solution

The fourth proportional to 28,760.75, 39,689.45 and 16,662.88 is: 22,994.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.75 : 39,689.45 = 16,662.88 : x
  2. Step 2: Convert to fraction form
    28,760.75/39,689.45 = 16,662.88/x
  3. Step 3: Cross multiply
    28,760.75x = 39,689.45 × 16,662.88
  4. Step 4: Simplify right side
    28,760.75x = 661,340,360.08
  5. Step 5: Solve for x
    x = 661,340,360.08/28,760.75
  6. Step 6: Final answer
    x = 22,994.54

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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.