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Finding the Fourth Proportional to 30,308.41, 45,469.77 and 9,531.91

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Solution

The fourth proportional to 30,308.41, 45,469.77 and 9,531.91 is: 14,300.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308.41 : 45,469.77 = 9,531.91 : x
  2. Step 2: Convert to fraction form
    30,308.41/45,469.77 = 9,531.91/x
  3. Step 3: Cross multiply
    30,308.41x = 45,469.77 × 9,531.91
  4. Step 4: Simplify right side
    30,308.41x = 433,413,755.36
  5. Step 5: Solve for x
    x = 433,413,755.36/30,308.41
  6. Step 6: Final answer
    x = 14,300.12

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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.