Home / 47,876.63-71,814.94-12,815.37

Finding the Fourth Proportional to 47,876.63, 71,814.94 and 12,815.37

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Solution

The fourth proportional to 47,876.63, 71,814.94 and 12,815.37 is: 19,223.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,876.63 : 71,814.94 = 12,815.37 : x
  2. Step 2: Convert to fraction form
    47,876.63/71,814.94 = 12,815.37/x
  3. Step 3: Cross multiply
    47,876.63x = 71,814.94 × 12,815.37
  4. Step 4: Simplify right side
    47,876.63x = 920,334,995.59
  5. Step 5: Solve for x
    x = 920,334,995.59/47,876.63
  6. Step 6: Final answer
    x = 19,223.06

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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.