Home / 38,639.96-57,968.26-11,985.41

Finding the Fourth Proportional to 38,639.96, 57,968.26 and 11,985.41

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Solution

The fourth proportional to 38,639.96, 57,968.26 and 11,985.41 is: 17,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639.96 : 57,968.26 = 11,985.41 : x
  2. Step 2: Convert to fraction form
    38,639.96/57,968.26 = 11,985.41/x
  3. Step 3: Cross multiply
    38,639.96x = 57,968.26 × 11,985.41
  4. Step 4: Simplify right side
    38,639.96x = 694,773,677.58
  5. Step 5: Solve for x
    x = 694,773,677.58/38,639.96
  6. Step 6: Final answer
    x = 17,980.70

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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.