Home / 47,859.15-71,788.73-18,279.98

Finding the Fourth Proportional to 47,859.15, 71,788.73 and 18,279.98

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Solution

The fourth proportional to 47,859.15, 71,788.73 and 18,279.98 is: 27,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,859.15 : 71,788.73 = 18,279.98 : x
  2. Step 2: Convert to fraction form
    47,859.15/71,788.73 = 18,279.98/x
  3. Step 3: Cross multiply
    47,859.15x = 71,788.73 × 18,279.98
  4. Step 4: Simplify right side
    47,859.15x = 1,312,296,470.31
  5. Step 5: Solve for x
    x = 1,312,296,470.31/47,859.15
  6. Step 6: Final answer
    x = 27,419.97

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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.