Home / 33,135.56-45,712-19,699.19

Finding the Fourth Proportional to 33,135.56, 45,712 and 19,699.19

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Solution

The fourth proportional to 33,135.56, 45,712 and 19,699.19 is: 27,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,135.56 : 45,712 = 19,699.19 : x
  2. Step 2: Convert to fraction form
    33,135.56/45,712 = 19,699.19/x
  3. Step 3: Cross multiply
    33,135.56x = 45,712 × 19,699.19
  4. Step 4: Simplify right side
    33,135.56x = 900,489,373.28
  5. Step 5: Solve for x
    x = 900,489,373.28/33,135.56
  6. Step 6: Final answer
    x = 27,175.92

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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.