Home / 30,469.88-42,050.58-17,042.38

Finding the Fourth Proportional to 30,469.88, 42,050.58 and 17,042.38

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Solution

The fourth proportional to 30,469.88, 42,050.58 and 17,042.38 is: 23,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,469.88 : 42,050.58 = 17,042.38 : x
  2. Step 2: Convert to fraction form
    30,469.88/42,050.58 = 17,042.38/x
  3. Step 3: Cross multiply
    30,469.88x = 42,050.58 × 17,042.38
  4. Step 4: Simplify right side
    30,469.88x = 716,641,963.58
  5. Step 5: Solve for x
    x = 716,641,963.58/30,469.88
  6. Step 6: Final answer
    x = 23,519.68

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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.