Home / 27,128.72-40,705.13-14,634.27

Finding the Fourth Proportional to 27,128.72, 40,705.13 and 14,634.27

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Solution

The fourth proportional to 27,128.72, 40,705.13 and 14,634.27 is: 21,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.72 : 40,705.13 = 14,634.27 : x
  2. Step 2: Convert to fraction form
    27,128.72/40,705.13 = 14,634.27/x
  3. Step 3: Cross multiply
    27,128.72x = 40,705.13 × 14,634.27
  4. Step 4: Simplify right side
    27,128.72x = 595,689,899.39
  5. Step 5: Solve for x
    x = 595,689,899.39/27,128.72
  6. Step 6: Final answer
    x = 21,957.90

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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.