Home / 30,333.12-45,502.06-13,702.48

Finding the Fourth Proportional to 30,333.12, 45,502.06 and 13,702.48

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Solution

The fourth proportional to 30,333.12, 45,502.06 and 13,702.48 is: 20,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,333.12 : 45,502.06 = 13,702.48 : x
  2. Step 2: Convert to fraction form
    30,333.12/45,502.06 = 13,702.48/x
  3. Step 3: Cross multiply
    30,333.12x = 45,502.06 × 13,702.48
  4. Step 4: Simplify right side
    30,333.12x = 623,491,067.11
  5. Step 5: Solve for x
    x = 623,491,067.11/30,333.12
  6. Step 6: Final answer
    x = 20,554.80

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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.