Home / 47,689.94-71,540.67-12,630.26

Finding the Fourth Proportional to 47,689.94, 71,540.67 and 12,630.26

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Solution

The fourth proportional to 47,689.94, 71,540.67 and 12,630.26 is: 18,946.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,689.94 : 71,540.67 = 12,630.26 : x
  2. Step 2: Convert to fraction form
    47,689.94/71,540.67 = 12,630.26/x
  3. Step 3: Cross multiply
    47,689.94x = 71,540.67 × 12,630.26
  4. Step 4: Simplify right side
    47,689.94x = 903,577,262.67
  5. Step 5: Solve for x
    x = 903,577,262.67/47,689.94
  6. Step 6: Final answer
    x = 18,946.92

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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.