Home / 21,024.24-31,550.01-7,876.50

Finding the Fourth Proportional to 21,024.24, 31,550.01 and 7,876.50

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Solution

The fourth proportional to 21,024.24, 31,550.01 and 7,876.50 is: 11,819.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.24 : 31,550.01 = 7,876.50 : x
  2. Step 2: Convert to fraction form
    21,024.24/31,550.01 = 7,876.50/x
  3. Step 3: Cross multiply
    21,024.24x = 31,550.01 × 7,876.50
  4. Step 4: Simplify right side
    21,024.24x = 248,503,653.77
  5. Step 5: Solve for x
    x = 248,503,653.77/21,024.24
  6. Step 6: Final answer
    x = 11,819.86

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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.