Home / 28,757.82-39,685.74-16,818.69

Finding the Fourth Proportional to 28,757.82, 39,685.74 and 16,818.69

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Solution

The fourth proportional to 28,757.82, 39,685.74 and 16,818.69 is: 23,209.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.82 : 39,685.74 = 16,818.69 : x
  2. Step 2: Convert to fraction form
    28,757.82/39,685.74 = 16,818.69/x
  3. Step 3: Cross multiply
    28,757.82x = 39,685.74 × 16,818.69
  4. Step 4: Simplify right side
    28,757.82x = 667,462,158.48
  5. Step 5: Solve for x
    x = 667,462,158.48/28,757.82
  6. Step 6: Final answer
    x = 23,209.76

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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.