Home / 20,187.36-27,834.72-13,817.04

Finding the Fourth Proportional to 20,187.36, 27,834.72 and 13,817.04

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Solution

The fourth proportional to 20,187.36, 27,834.72 and 13,817.04 is: 19,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.36 : 27,834.72 = 13,817.04 : x
  2. Step 2: Convert to fraction form
    20,187.36/27,834.72 = 13,817.04/x
  3. Step 3: Cross multiply
    20,187.36x = 27,834.72 × 13,817.04
  4. Step 4: Simplify right side
    20,187.36x = 384,593,439.63
  5. Step 5: Solve for x
    x = 384,593,439.63/20,187.36
  6. Step 6: Final answer
    x = 19,051.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.