Home / 27,788.33-38,333.55-18,832.77

Finding the Fourth Proportional to 27,788.33, 38,333.55 and 18,832.77

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Solution

The fourth proportional to 27,788.33, 38,333.55 and 18,832.77 is: 25,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.33 : 38,333.55 = 18,832.77 : x
  2. Step 2: Convert to fraction form
    27,788.33/38,333.55 = 18,832.77/x
  3. Step 3: Cross multiply
    27,788.33x = 38,333.55 × 18,832.77
  4. Step 4: Simplify right side
    27,788.33x = 721,926,836.27
  5. Step 5: Solve for x
    x = 721,926,836.27/27,788.33
  6. Step 6: Final answer
    x = 25,979.50

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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.