Home / 47,871.22-71,801.35-12,813.61

Finding the Fourth Proportional to 47,871.22, 71,801.35 and 12,813.61

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Solution

The fourth proportional to 47,871.22, 71,801.35 and 12,813.61 is: 19,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,871.22 : 71,801.35 = 12,813.61 : x
  2. Step 2: Convert to fraction form
    47,871.22/71,801.35 = 12,813.61/x
  3. Step 3: Cross multiply
    47,871.22x = 71,801.35 × 12,813.61
  4. Step 4: Simplify right side
    47,871.22x = 920,034,432.31
  5. Step 5: Solve for x
    x = 920,034,432.31/47,871.22
  6. Step 6: Final answer
    x = 19,218.95

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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.