Home / 27,788.91-38,350.89-15,849.51

Finding the Fourth Proportional to 27,788.91, 38,350.89 and 15,849.51

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Solution

The fourth proportional to 27,788.91, 38,350.89 and 15,849.51 is: 21,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.91 : 38,350.89 = 15,849.51 : x
  2. Step 2: Convert to fraction form
    27,788.91/38,350.89 = 15,849.51/x
  3. Step 3: Cross multiply
    27,788.91x = 38,350.89 × 15,849.51
  4. Step 4: Simplify right side
    27,788.91x = 607,842,814.56
  5. Step 5: Solve for x
    x = 607,842,814.56/27,788.91
  6. Step 6: Final answer
    x = 21,873.58

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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.