Home / 20,091.85-27,726.64-11,140.67

Finding the Fourth Proportional to 20,091.85, 27,726.64 and 11,140.67

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Solution

The fourth proportional to 20,091.85, 27,726.64 and 11,140.67 is: 15,374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.85 : 27,726.64 = 11,140.67 : x
  2. Step 2: Convert to fraction form
    20,091.85/27,726.64 = 11,140.67/x
  3. Step 3: Cross multiply
    20,091.85x = 27,726.64 × 11,140.67
  4. Step 4: Simplify right side
    20,091.85x = 308,893,387.91
  5. Step 5: Solve for x
    x = 308,893,387.91/20,091.85
  6. Step 6: Final answer
    x = 15,374.07

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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.