Home / 30,942.96-42,701.40-16,795.82

Finding the Fourth Proportional to 30,942.96, 42,701.40 and 16,795.82

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Solution

The fourth proportional to 30,942.96, 42,701.40 and 16,795.82 is: 23,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.96 : 42,701.40 = 16,795.82 : x
  2. Step 2: Convert to fraction form
    30,942.96/42,701.40 = 16,795.82/x
  3. Step 3: Cross multiply
    30,942.96x = 42,701.40 × 16,795.82
  4. Step 4: Simplify right side
    30,942.96x = 717,204,814.64
  5. Step 5: Solve for x
    x = 717,204,814.64/30,942.96
  6. Step 6: Final answer
    x = 23,178.29

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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.