Home / 28,755.21-43,137.17-9,031.91

Finding the Fourth Proportional to 28,755.21, 43,137.17 and 9,031.91

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Solution

The fourth proportional to 28,755.21, 43,137.17 and 9,031.91 is: 13,549.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.21 : 43,137.17 = 9,031.91 : x
  2. Step 2: Convert to fraction form
    28,755.21/43,137.17 = 9,031.91/x
  3. Step 3: Cross multiply
    28,755.21x = 43,137.17 × 9,031.91
  4. Step 4: Simplify right side
    28,755.21x = 389,610,991.94
  5. Step 5: Solve for x
    x = 389,610,991.94/28,755.21
  6. Step 6: Final answer
    x = 13,549.23

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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.