Home / 20,705.42-31,054.94-11,350.07

Finding the Fourth Proportional to 20,705.42, 31,054.94 and 11,350.07

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Solution

The fourth proportional to 20,705.42, 31,054.94 and 11,350.07 is: 17,023.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.42 : 31,054.94 = 11,350.07 : x
  2. Step 2: Convert to fraction form
    20,705.42/31,054.94 = 11,350.07/x
  3. Step 3: Cross multiply
    20,705.42x = 31,054.94 × 11,350.07
  4. Step 4: Simplify right side
    20,705.42x = 352,475,928.37
  5. Step 5: Solve for x
    x = 352,475,928.37/20,705.42
  6. Step 6: Final answer
    x = 17,023.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.