Home / 20,170.83-27,837.10-11,219.93

Finding the Fourth Proportional to 20,170.83, 27,837.10 and 11,219.93

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Solution

The fourth proportional to 20,170.83, 27,837.10 and 11,219.93 is: 15,484.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.83 : 27,837.10 = 11,219.93 : x
  2. Step 2: Convert to fraction form
    20,170.83/27,837.10 = 11,219.93/x
  3. Step 3: Cross multiply
    20,170.83x = 27,837.10 × 11,219.93
  4. Step 4: Simplify right side
    20,170.83x = 312,330,313.40
  5. Step 5: Solve for x
    x = 312,330,313.40/20,170.83
  6. Step 6: Final answer
    x = 15,484.26

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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.