Home / 47,730.32-71,589.92-12,672.70

Finding the Fourth Proportional to 47,730.32, 71,589.92 and 12,672.70

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Solution

The fourth proportional to 47,730.32, 71,589.92 and 12,672.70 is: 19,007.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,730.32 : 71,589.92 = 12,672.70 : x
  2. Step 2: Convert to fraction form
    47,730.32/71,589.92 = 12,672.70/x
  3. Step 3: Cross multiply
    47,730.32x = 71,589.92 × 12,672.70
  4. Step 4: Simplify right side
    47,730.32x = 907,237,579.18
  5. Step 5: Solve for x
    x = 907,237,579.18/47,730.32
  6. Step 6: Final answer
    x = 19,007.57

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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.