Home / 20,065.35-27,690.42-11,113.03

Finding the Fourth Proportional to 20,065.35, 27,690.42 and 11,113.03

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Solution

The fourth proportional to 20,065.35, 27,690.42 and 11,113.03 is: 15,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.35 : 27,690.42 = 11,113.03 : x
  2. Step 2: Convert to fraction form
    20,065.35/27,690.42 = 11,113.03/x
  3. Step 3: Cross multiply
    20,065.35x = 27,690.42 × 11,113.03
  4. Step 4: Simplify right side
    20,065.35x = 307,724,544.46
  5. Step 5: Solve for x
    x = 307,724,544.46/20,065.35
  6. Step 6: Final answer
    x = 15,336.11

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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.