Home / 20,954.07-31,441.59-13,054.14

Finding the Fourth Proportional to 20,954.07, 31,441.59 and 13,054.14

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Solution

The fourth proportional to 20,954.07, 31,441.59 and 13,054.14 is: 19,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.07 : 31,441.59 = 13,054.14 : x
  2. Step 2: Convert to fraction form
    20,954.07/31,441.59 = 13,054.14/x
  3. Step 3: Cross multiply
    20,954.07x = 31,441.59 × 13,054.14
  4. Step 4: Simplify right side
    20,954.07x = 410,442,917.68
  5. Step 5: Solve for x
    x = 410,442,917.68/20,954.07
  6. Step 6: Final answer
    x = 19,587.74

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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.