Home / 20,065.68-27,690.86-11,113.32

Finding the Fourth Proportional to 20,065.68, 27,690.86 and 11,113.32

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Solution

The fourth proportional to 20,065.68, 27,690.86 and 11,113.32 is: 15,336.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.68 : 27,690.86 = 11,113.32 : x
  2. Step 2: Convert to fraction form
    20,065.68/27,690.86 = 11,113.32/x
  3. Step 3: Cross multiply
    20,065.68x = 27,690.86 × 11,113.32
  4. Step 4: Simplify right side
    20,065.68x = 307,737,388.26
  5. Step 5: Solve for x
    x = 307,737,388.26/20,065.68
  6. Step 6: Final answer
    x = 15,336.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.