Home / 38,435.04-57,669.84-20,878.56

Finding the Fourth Proportional to 38,435.04, 57,669.84 and 20,878.56

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Solution

The fourth proportional to 38,435.04, 57,669.84 and 20,878.56 is: 31,327.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,435.04 : 57,669.84 = 20,878.56 : x
  2. Step 2: Convert to fraction form
    38,435.04/57,669.84 = 20,878.56/x
  3. Step 3: Cross multiply
    38,435.04x = 57,669.84 × 20,878.56
  4. Step 4: Simplify right side
    38,435.04x = 1,204,063,214.63
  5. Step 5: Solve for x
    x = 1,204,063,214.63/38,435.04
  6. Step 6: Final answer
    x = 31,327.23

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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.