Home / 39,120.12-53,929.44-27,922.68

Finding the Fourth Proportional to 39,120.12, 53,929.44 and 27,922.68

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Solution

The fourth proportional to 39,120.12, 53,929.44 and 27,922.68 is: 38,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,120.12 : 53,929.44 = 27,922.68 : x
  2. Step 2: Convert to fraction form
    39,120.12/53,929.44 = 27,922.68/x
  3. Step 3: Cross multiply
    39,120.12x = 53,929.44 × 27,922.68
  4. Step 4: Simplify right side
    39,120.12x = 1,505,854,495.70
  5. Step 5: Solve for x
    x = 1,505,854,495.70/39,120.12
  6. Step 6: Final answer
    x = 38,493.10

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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.