Home / 28,723.34-39,638.21-16,796.70

Finding the Fourth Proportional to 28,723.34, 39,638.21 and 16,796.70

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Solution

The fourth proportional to 28,723.34, 39,638.21 and 16,796.70 is: 23,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.34 : 39,638.21 = 16,796.70 : x
  2. Step 2: Convert to fraction form
    28,723.34/39,638.21 = 16,796.70/x
  3. Step 3: Cross multiply
    28,723.34x = 39,638.21 × 16,796.70
  4. Step 4: Simplify right side
    28,723.34x = 665,791,244.94
  5. Step 5: Solve for x
    x = 665,791,244.94/28,723.34
  6. Step 6: Final answer
    x = 23,179.45

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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.