Home / 18,730.92-28,072.80-16,385.34

Finding the Fourth Proportional to 18,730.92, 28,072.80 and 16,385.34

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Solution

The fourth proportional to 18,730.92, 28,072.80 and 16,385.34 is: 24,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.92 : 28,072.80 = 16,385.34 : x
  2. Step 2: Convert to fraction form
    18,730.92/28,072.80 = 16,385.34/x
  3. Step 3: Cross multiply
    18,730.92x = 28,072.80 × 16,385.34
  4. Step 4: Simplify right side
    18,730.92x = 459,982,372.75
  5. Step 5: Solve for x
    x = 459,982,372.75/18,730.92
  6. Step 6: Final answer
    x = 24,557.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.