Home / 30,815.67-42,525.54-16,668.48

Finding the Fourth Proportional to 30,815.67, 42,525.54 and 16,668.48

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Solution

The fourth proportional to 30,815.67, 42,525.54 and 16,668.48 is: 23,002.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,815.67 : 42,525.54 = 16,668.48 : x
  2. Step 2: Convert to fraction form
    30,815.67/42,525.54 = 16,668.48/x
  3. Step 3: Cross multiply
    30,815.67x = 42,525.54 × 16,668.48
  4. Step 4: Simplify right side
    30,815.67x = 708,836,112.98
  5. Step 5: Solve for x
    x = 708,836,112.98/30,815.67
  6. Step 6: Final answer
    x = 23,002.46

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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.