Home / 20,826.75-31,237.83-5,244.38

Finding the Fourth Proportional to 20,826.75, 31,237.83 and 5,244.38

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Solution

The fourth proportional to 20,826.75, 31,237.83 and 5,244.38 is: 7,865.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,826.75 : 31,237.83 = 5,244.38 : x
  2. Step 2: Convert to fraction form
    20,826.75/31,237.83 = 5,244.38/x
  3. Step 3: Cross multiply
    20,826.75x = 31,237.83 × 5,244.38
  4. Step 4: Simplify right side
    20,826.75x = 163,822,894.71
  5. Step 5: Solve for x
    x = 163,822,894.71/20,826.75
  6. Step 6: Final answer
    x = 7,865.98

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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.