Home / 33,128.98-45,717.17-18,980.91

Finding the Fourth Proportional to 33,128.98, 45,717.17 and 18,980.91

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Solution

The fourth proportional to 33,128.98, 45,717.17 and 18,980.91 is: 26,193.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,128.98 : 45,717.17 = 18,980.91 : x
  2. Step 2: Convert to fraction form
    33,128.98/45,717.17 = 18,980.91/x
  3. Step 3: Cross multiply
    33,128.98x = 45,717.17 × 18,980.91
  4. Step 4: Simplify right side
    33,128.98x = 867,753,394.32
  5. Step 5: Solve for x
    x = 867,753,394.32/33,128.98
  6. Step 6: Final answer
    x = 26,193.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.