Home / 38,639.83-57,968.05-11,985.27

Finding the Fourth Proportional to 38,639.83, 57,968.05 and 11,985.27

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Solution

The fourth proportional to 38,639.83, 57,968.05 and 11,985.27 is: 17,980.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639.83 : 57,968.05 = 11,985.27 : x
  2. Step 2: Convert to fraction form
    38,639.83/57,968.05 = 11,985.27/x
  3. Step 3: Cross multiply
    38,639.83x = 57,968.05 × 11,985.27
  4. Step 4: Simplify right side
    38,639.83x = 694,762,730.62
  5. Step 5: Solve for x
    x = 694,762,730.62/38,639.83
  6. Step 6: Final answer
    x = 17,980.48

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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.