Home / 47,918.86-71,873.30-21,265.31

Finding the Fourth Proportional to 47,918.86, 71,873.30 and 21,265.31

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Solution

The fourth proportional to 47,918.86, 71,873.30 and 21,265.31 is: 31,895.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,918.86 : 71,873.30 = 21,265.31 : x
  2. Step 2: Convert to fraction form
    47,918.86/71,873.30 = 21,265.31/x
  3. Step 3: Cross multiply
    47,918.86x = 71,873.30 × 21,265.31
  4. Step 4: Simplify right side
    47,918.86x = 1,528,408,078.58
  5. Step 5: Solve for x
    x = 1,528,408,078.58/47,918.86
  6. Step 6: Final answer
    x = 31,895.75

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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.