Home / 20,898.96-31,275.20-14,982.36

Finding the Fourth Proportional to 20,898.96, 31,275.20 and 14,982.36

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Solution

The fourth proportional to 20,898.96, 31,275.20 and 14,982.36 is: 22,421.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.96 : 31,275.20 = 14,982.36 : x
  2. Step 2: Convert to fraction form
    20,898.96/31,275.20 = 14,982.36/x
  3. Step 3: Cross multiply
    20,898.96x = 31,275.20 × 14,982.36
  4. Step 4: Simplify right side
    20,898.96x = 468,576,305.47
  5. Step 5: Solve for x
    x = 468,576,305.47/20,898.96
  6. Step 6: Final answer
    x = 22,421.03

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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.