Home / 20,090.65-27,726.74-11,140.96

Finding the Fourth Proportional to 20,090.65, 27,726.74 and 11,140.96

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Solution

The fourth proportional to 20,090.65, 27,726.74 and 11,140.96 is: 15,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.65 : 27,726.74 = 11,140.96 : x
  2. Step 2: Convert to fraction form
    20,090.65/27,726.74 = 11,140.96/x
  3. Step 3: Cross multiply
    20,090.65x = 27,726.74 × 11,140.96
  4. Step 4: Simplify right side
    20,090.65x = 308,902,501.27
  5. Step 5: Solve for x
    x = 308,902,501.27/20,090.65
  6. Step 6: Final answer
    x = 15,375.44

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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.