Home / 38,111.81-57,203.15-19,405.82

Finding the Fourth Proportional to 38,111.81, 57,203.15 and 19,405.82

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Solution

The fourth proportional to 38,111.81, 57,203.15 and 19,405.82 is: 29,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,111.81 : 57,203.15 = 19,405.82 : x
  2. Step 2: Convert to fraction form
    38,111.81/57,203.15 = 19,405.82/x
  3. Step 3: Cross multiply
    38,111.81x = 57,203.15 × 19,405.82
  4. Step 4: Simplify right side
    38,111.81x = 1,110,073,649.29
  5. Step 5: Solve for x
    x = 1,110,073,649.29/38,111.81
  6. Step 6: Final answer
    x = 29,126.77

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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.