Home / 30,942.89-42,701.23-16,795.73

Finding the Fourth Proportional to 30,942.89, 42,701.23 and 16,795.73

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Solution

The fourth proportional to 30,942.89, 42,701.23 and 16,795.73 is: 23,178.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.89 : 42,701.23 = 16,795.73 : x
  2. Step 2: Convert to fraction form
    30,942.89/42,701.23 = 16,795.73/x
  3. Step 3: Cross multiply
    30,942.89x = 42,701.23 × 16,795.73
  4. Step 4: Simplify right side
    30,942.89x = 717,198,158.23
  5. Step 5: Solve for x
    x = 717,198,158.23/30,942.89
  6. Step 6: Final answer
    x = 23,178.13

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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.