Home / 20,949.30-31,361.58-13,532.13

Finding the Fourth Proportional to 20,949.30, 31,361.58 and 13,532.13

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Solution

The fourth proportional to 20,949.30, 31,361.58 and 13,532.13 is: 20,257.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.30 : 31,361.58 = 13,532.13 : x
  2. Step 2: Convert to fraction form
    20,949.30/31,361.58 = 13,532.13/x
  3. Step 3: Cross multiply
    20,949.30x = 31,361.58 × 13,532.13
  4. Step 4: Simplify right side
    20,949.30x = 424,388,977.57
  5. Step 5: Solve for x
    x = 424,388,977.57/20,949.30
  6. Step 6: Final answer
    x = 20,257.91

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1.5x scale

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.