Home / 20,113.39-27,755.14-11,160.32

Finding the Fourth Proportional to 20,113.39, 27,755.14 and 11,160.32

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Solution

The fourth proportional to 20,113.39, 27,755.14 and 11,160.32 is: 15,400.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.39 : 27,755.14 = 11,160.32 : x
  2. Step 2: Convert to fraction form
    20,113.39/27,755.14 = 11,160.32/x
  3. Step 3: Cross multiply
    20,113.39x = 27,755.14 × 11,160.32
  4. Step 4: Simplify right side
    20,113.39x = 309,756,188.24
  5. Step 5: Solve for x
    x = 309,756,188.24/20,113.39
  6. Step 6: Final answer
    x = 15,400.50

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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.