Home / 30,078.42-45,103.71-16,930.79

Finding the Fourth Proportional to 30,078.42, 45,103.71 and 16,930.79

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Solution

The fourth proportional to 30,078.42, 45,103.71 and 16,930.79 is: 25,388.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,078.42 : 45,103.71 = 16,930.79 : x
  2. Step 2: Convert to fraction form
    30,078.42/45,103.71 = 16,930.79/x
  3. Step 3: Cross multiply
    30,078.42x = 45,103.71 × 16,930.79
  4. Step 4: Simplify right side
    30,078.42x = 763,641,216.71
  5. Step 5: Solve for x
    x = 763,641,216.71/30,078.42
  6. Step 6: Final answer
    x = 25,388.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.