Home / 20,065.51-27,690.62-11,113.19

Finding the Fourth Proportional to 20,065.51, 27,690.62 and 11,113.19

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Solution

The fourth proportional to 20,065.51, 27,690.62 and 11,113.19 is: 15,336.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.51 : 27,690.62 = 11,113.19 : x
  2. Step 2: Convert to fraction form
    20,065.51/27,690.62 = 11,113.19/x
  3. Step 3: Cross multiply
    20,065.51x = 27,690.62 × 11,113.19
  4. Step 4: Simplify right side
    20,065.51x = 307,731,121.28
  5. Step 5: Solve for x
    x = 307,731,121.28/20,065.51
  6. Step 6: Final answer
    x = 15,336.32

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Double scale
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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.