Home / 27,873.68-38,465.18-15,774.04

Finding the Fourth Proportional to 27,873.68, 38,465.18 and 15,774.04

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Solution

The fourth proportional to 27,873.68, 38,465.18 and 15,774.04 is: 21,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,873.68 : 38,465.18 = 15,774.04 : x
  2. Step 2: Convert to fraction form
    27,873.68/38,465.18 = 15,774.04/x
  3. Step 3: Cross multiply
    27,873.68x = 38,465.18 × 15,774.04
  4. Step 4: Simplify right side
    27,873.68x = 606,751,287.93
  5. Step 5: Solve for x
    x = 606,751,287.93/27,873.68
  6. Step 6: Final answer
    x = 21,767.89

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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.