Home / 39,177.08-54,064.59-21,272.09

Finding the Fourth Proportional to 39,177.08, 54,064.59 and 21,272.09

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Solution

The fourth proportional to 39,177.08, 54,064.59 and 21,272.09 is: 29,355.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,177.08 : 54,064.59 = 21,272.09 : x
  2. Step 2: Convert to fraction form
    39,177.08/54,064.59 = 21,272.09/x
  3. Step 3: Cross multiply
    39,177.08x = 54,064.59 × 21,272.09
  4. Step 4: Simplify right side
    39,177.08x = 1,150,066,447.61
  5. Step 5: Solve for x
    x = 1,150,066,447.61/39,177.08
  6. Step 6: Final answer
    x = 29,355.59

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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.