Home / 20,898.65-31,311.52-17,411.06

Finding the Fourth Proportional to 20,898.65, 31,311.52 and 17,411.06

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Solution

The fourth proportional to 20,898.65, 31,311.52 and 17,411.06 is: 26,086.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.65 : 31,311.52 = 17,411.06 : x
  2. Step 2: Convert to fraction form
    20,898.65/31,311.52 = 17,411.06/x
  3. Step 3: Cross multiply
    20,898.65x = 31,311.52 × 17,411.06
  4. Step 4: Simplify right side
    20,898.65x = 545,166,753.41
  5. Step 5: Solve for x
    x = 545,166,753.41/20,898.65
  6. Step 6: Final answer
    x = 26,086.22

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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.