Home / 39,170.45-54,055.07-21,265.32

Finding the Fourth Proportional to 39,170.45, 54,055.07 and 21,265.32

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Solution

The fourth proportional to 39,170.45, 54,055.07 and 21,265.32 is: 29,346.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,170.45 : 54,055.07 = 21,265.32 : x
  2. Step 2: Convert to fraction form
    39,170.45/54,055.07 = 21,265.32/x
  3. Step 3: Cross multiply
    39,170.45x = 54,055.07 × 21,265.32
  4. Step 4: Simplify right side
    39,170.45x = 1,149,498,361.17
  5. Step 5: Solve for x
    x = 1,149,498,361.17/39,170.45
  6. Step 6: Final answer
    x = 29,346.06

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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.