Home / 30,942.76-42,701.06-16,795.60

Finding the Fourth Proportional to 30,942.76, 42,701.06 and 16,795.60

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Solution

The fourth proportional to 30,942.76, 42,701.06 and 16,795.60 is: 23,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.76 : 42,701.06 = 16,795.60 : x
  2. Step 2: Convert to fraction form
    30,942.76/42,701.06 = 16,795.60/x
  3. Step 3: Cross multiply
    30,942.76x = 42,701.06 × 16,795.60
  4. Step 4: Simplify right side
    30,942.76x = 717,189,923.34
  5. Step 5: Solve for x
    x = 717,189,923.34/30,942.76
  6. Step 6: Final answer
    x = 23,177.96

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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.