Home / 30,567.69-42,180.97-17,137.12

Finding the Fourth Proportional to 30,567.69, 42,180.97 and 17,137.12

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Solution

The fourth proportional to 30,567.69, 42,180.97 and 17,137.12 is: 23,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,567.69 : 42,180.97 = 17,137.12 : x
  2. Step 2: Convert to fraction form
    30,567.69/42,180.97 = 17,137.12/x
  3. Step 3: Cross multiply
    30,567.69x = 42,180.97 × 17,137.12
  4. Step 4: Simplify right side
    30,567.69x = 722,860,235.24
  5. Step 5: Solve for x
    x = 722,860,235.24/30,567.69
  6. Step 6: Final answer
    x = 23,647.85

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Half scale
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Double scale
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Similar ratio
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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.