Home / 20,898.44-31,358.42-13,883.29

Finding the Fourth Proportional to 20,898.44, 31,358.42 and 13,883.29

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Solution

The fourth proportional to 20,898.44, 31,358.42 and 13,883.29 is: 20,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.44 : 31,358.42 = 13,883.29 : x
  2. Step 2: Convert to fraction form
    20,898.44/31,358.42 = 13,883.29/x
  3. Step 3: Cross multiply
    20,898.44x = 31,358.42 × 13,883.29
  4. Step 4: Simplify right side
    20,898.44x = 435,358,038.80
  5. Step 5: Solve for x
    x = 435,358,038.80/20,898.44
  6. Step 6: Final answer
    x = 20,832.08

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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.