Home / 30,815.58-42,525.46-16,668.42

Finding the Fourth Proportional to 30,815.58, 42,525.46 and 16,668.42

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Solution

The fourth proportional to 30,815.58, 42,525.46 and 16,668.42 is: 23,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,815.58 : 42,525.46 = 16,668.42 : x
  2. Step 2: Convert to fraction form
    30,815.58/42,525.46 = 16,668.42/x
  3. Step 3: Cross multiply
    30,815.58x = 42,525.46 × 16,668.42
  4. Step 4: Simplify right side
    30,815.58x = 708,832,227.97
  5. Step 5: Solve for x
    x = 708,832,227.97/30,815.58
  6. Step 6: Final answer
    x = 23,002.40

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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.