Home / 30,951.95-42,713.56-16,804.79

Finding the Fourth Proportional to 30,951.95, 42,713.56 and 16,804.79

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Solution

The fourth proportional to 30,951.95, 42,713.56 and 16,804.79 is: 23,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,951.95 : 42,713.56 = 16,804.79 : x
  2. Step 2: Convert to fraction form
    30,951.95/42,713.56 = 16,804.79/x
  3. Step 3: Cross multiply
    30,951.95x = 42,713.56 × 16,804.79
  4. Step 4: Simplify right side
    30,951.95x = 717,792,405.95
  5. Step 5: Solve for x
    x = 717,792,405.95/30,951.95
  6. Step 6: Final answer
    x = 23,190.54

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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.