Home / 20,190.08-27,862.70-11,237.96

Finding the Fourth Proportional to 20,190.08, 27,862.70 and 11,237.96

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Solution

The fourth proportional to 20,190.08, 27,862.70 and 11,237.96 is: 15,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.08 : 27,862.70 = 11,237.96 : x
  2. Step 2: Convert to fraction form
    20,190.08/27,862.70 = 11,237.96/x
  3. Step 3: Cross multiply
    20,190.08x = 27,862.70 × 11,237.96
  4. Step 4: Simplify right side
    20,190.08x = 313,119,908.09
  5. Step 5: Solve for x
    x = 313,119,908.09/20,190.08
  6. Step 6: Final answer
    x = 15,508.60

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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.