Home / 33,129.96-45,719.33-18,991.01

Finding the Fourth Proportional to 33,129.96, 45,719.33 and 18,991.01

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Solution

The fourth proportional to 33,129.96, 45,719.33 and 18,991.01 is: 26,207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.96 : 45,719.33 = 18,991.01 : x
  2. Step 2: Convert to fraction form
    33,129.96/45,719.33 = 18,991.01/x
  3. Step 3: Cross multiply
    33,129.96x = 45,719.33 × 18,991.01
  4. Step 4: Simplify right side
    33,129.96x = 868,255,929.67
  5. Step 5: Solve for x
    x = 868,255,929.67/33,129.96
  6. Step 6: Final answer
    x = 26,207.58

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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.