Home / 20,187.63-27,835.10-13,817.29

Finding the Fourth Proportional to 20,187.63, 27,835.10 and 13,817.29

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Solution

The fourth proportional to 20,187.63, 27,835.10 and 13,817.29 is: 19,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.63 : 27,835.10 = 13,817.29 : x
  2. Step 2: Convert to fraction form
    20,187.63/27,835.10 = 13,817.29/x
  3. Step 3: Cross multiply
    20,187.63x = 27,835.10 × 13,817.29
  4. Step 4: Simplify right side
    20,187.63x = 384,605,579.79
  5. Step 5: Solve for x
    x = 384,605,579.79/20,187.63
  6. Step 6: Final answer
    x = 19,051.55

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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.