Home / 30,758.85-42,451.25-17,332.70

Finding the Fourth Proportional to 30,758.85, 42,451.25 and 17,332.70

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Solution

The fourth proportional to 30,758.85, 42,451.25 and 17,332.70 is: 23,921.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,758.85 : 42,451.25 = 17,332.70 : x
  2. Step 2: Convert to fraction form
    30,758.85/42,451.25 = 17,332.70/x
  3. Step 3: Cross multiply
    30,758.85x = 42,451.25 × 17,332.70
  4. Step 4: Simplify right side
    30,758.85x = 735,794,481.96
  5. Step 5: Solve for x
    x = 735,794,481.96/30,758.85
  6. Step 6: Final answer
    x = 23,921.39

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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.