Home / 33,145.14-45,761.31-20,577.18

Finding the Fourth Proportional to 33,145.14, 45,761.31 and 20,577.18

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Solution

The fourth proportional to 33,145.14, 45,761.31 and 20,577.18 is: 28,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,145.14 : 45,761.31 = 20,577.18 : x
  2. Step 2: Convert to fraction form
    33,145.14/45,761.31 = 20,577.18/x
  3. Step 3: Cross multiply
    33,145.14x = 45,761.31 × 20,577.18
  4. Step 4: Simplify right side
    33,145.14x = 941,638,712.91
  5. Step 5: Solve for x
    x = 941,638,712.91/33,145.14
  6. Step 6: Final answer
    x = 28,409.56

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1.5x scale

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.