Home / 31,730.80-47,592.60-8,359.06

Finding the Fourth Proportional to 31,730.80, 47,592.60 and 8,359.06

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Solution

The fourth proportional to 31,730.80, 47,592.60 and 8,359.06 is: 12,537.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,730.80 : 47,592.60 = 8,359.06 : x
  2. Step 2: Convert to fraction form
    31,730.80/47,592.60 = 8,359.06/x
  3. Step 3: Cross multiply
    31,730.80x = 47,592.60 × 8,359.06
  4. Step 4: Simplify right side
    31,730.80x = 397,829,398.96
  5. Step 5: Solve for x
    x = 397,829,398.96/31,730.80
  6. Step 6: Final answer
    x = 12,537.64

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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.