Home / 20,696.19-31,045.43-5,903.92

Finding the Fourth Proportional to 20,696.19, 31,045.43 and 5,903.92

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Solution

The fourth proportional to 20,696.19, 31,045.43 and 5,903.92 is: 8,856.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.19 : 31,045.43 = 5,903.92 : x
  2. Step 2: Convert to fraction form
    20,696.19/31,045.43 = 5,903.92/x
  3. Step 3: Cross multiply
    20,696.19x = 31,045.43 × 5,903.92
  4. Step 4: Simplify right side
    20,696.19x = 183,289,788.65
  5. Step 5: Solve for x
    x = 183,289,788.65/20,696.19
  6. Step 6: Final answer
    x = 8,856.21

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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.