Home / 39,979.88-55,177.09-23,212.88

Finding the Fourth Proportional to 39,979.88, 55,177.09 and 23,212.88

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Solution

The fourth proportional to 39,979.88, 55,177.09 and 23,212.88 is: 32,036.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.88 : 55,177.09 = 23,212.88 : x
  2. Step 2: Convert to fraction form
    39,979.88/55,177.09 = 23,212.88/x
  3. Step 3: Cross multiply
    39,979.88x = 55,177.09 × 23,212.88
  4. Step 4: Simplify right side
    39,979.88x = 1,280,818,893.03
  5. Step 5: Solve for x
    x = 1,280,818,893.03/39,979.88
  6. Step 6: Final answer
    x = 32,036.59

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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.