Home / 27,828.36-38,402.72-15,081.24

Finding the Fourth Proportional to 27,828.36, 38,402.72 and 15,081.24

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Solution

The fourth proportional to 27,828.36, 38,402.72 and 15,081.24 is: 20,811.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,828.36 : 38,402.72 = 15,081.24 : x
  2. Step 2: Convert to fraction form
    27,828.36/38,402.72 = 15,081.24/x
  3. Step 3: Cross multiply
    27,828.36x = 38,402.72 × 15,081.24
  4. Step 4: Simplify right side
    27,828.36x = 579,160,636.97
  5. Step 5: Solve for x
    x = 579,160,636.97/27,828.36
  6. Step 6: Final answer
    x = 20,811.89

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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.