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Finding the Fourth Proportional to 28,829.61, 43,249.82 and 9,113.13

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Solution

The fourth proportional to 28,829.61, 43,249.82 and 9,113.13 is: 13,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.61 : 43,249.82 = 9,113.13 : x
  2. Step 2: Convert to fraction form
    28,829.61/43,249.82 = 9,113.13/x
  3. Step 3: Cross multiply
    28,829.61x = 43,249.82 × 9,113.13
  4. Step 4: Simplify right side
    28,829.61x = 394,141,186.57
  5. Step 5: Solve for x
    x = 394,141,186.57/28,829.61
  6. Step 6: Final answer
    x = 13,671.40

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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.