Home / 20,834.04-31,255.02-7,687.44

Finding the Fourth Proportional to 20,834.04, 31,255.02 and 7,687.44

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Solution

The fourth proportional to 20,834.04, 31,255.02 and 7,687.44 is: 11,532.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.04 : 31,255.02 = 7,687.44 : x
  2. Step 2: Convert to fraction form
    20,834.04/31,255.02 = 7,687.44/x
  3. Step 3: Cross multiply
    20,834.04x = 31,255.02 × 7,687.44
  4. Step 4: Simplify right side
    20,834.04x = 240,271,090.95
  5. Step 5: Solve for x
    x = 240,271,090.95/20,834.04
  6. Step 6: Final answer
    x = 11,532.62

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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.