Home / 27,784.08-38,327.68-18,828.52

Finding the Fourth Proportional to 27,784.08, 38,327.68 and 18,828.52

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Solution

The fourth proportional to 27,784.08, 38,327.68 and 18,828.52 is: 25,973.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,784.08 : 38,327.68 = 18,828.52 : x
  2. Step 2: Convert to fraction form
    27,784.08/38,327.68 = 18,828.52/x
  3. Step 3: Cross multiply
    27,784.08x = 38,327.68 × 18,828.52
  4. Step 4: Simplify right side
    27,784.08x = 721,653,489.43
  5. Step 5: Solve for x
    x = 721,653,489.43/27,784.08
  6. Step 6: Final answer
    x = 25,973.63

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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.