Home / 20,110.06-27,750.55-11,157.26

Finding the Fourth Proportional to 20,110.06, 27,750.55 and 11,157.26

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Solution

The fourth proportional to 20,110.06, 27,750.55 and 11,157.26 is: 15,396.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.06 : 27,750.55 = 11,157.26 : x
  2. Step 2: Convert to fraction form
    20,110.06/27,750.55 = 11,157.26/x
  3. Step 3: Cross multiply
    20,110.06x = 27,750.55 × 11,157.26
  4. Step 4: Simplify right side
    20,110.06x = 309,620,045.71
  5. Step 5: Solve for x
    x = 309,620,045.71/20,110.06
  6. Step 6: Final answer
    x = 15,396.28

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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.