Home / 27,828.13-38,402.73-15,081.37

Finding the Fourth Proportional to 27,828.13, 38,402.73 and 15,081.37

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Solution

The fourth proportional to 27,828.13, 38,402.73 and 15,081.37 is: 20,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,828.13 : 38,402.73 = 15,081.37 : x
  2. Step 2: Convert to fraction form
    27,828.13/38,402.73 = 15,081.37/x
  3. Step 3: Cross multiply
    27,828.13x = 38,402.73 × 15,081.37
  4. Step 4: Simplify right side
    27,828.13x = 579,165,780.14
  5. Step 5: Solve for x
    x = 579,165,780.14/27,828.13
  6. Step 6: Final answer
    x = 20,812.24

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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.