Home / 27,828.48-38,403.84-15,252.48

Finding the Fourth Proportional to 27,828.48, 38,403.84 and 15,252.48

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Solution

The fourth proportional to 27,828.48, 38,403.84 and 15,252.48 is: 21,048.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,828.48 : 38,403.84 = 15,252.48 : x
  2. Step 2: Convert to fraction form
    27,828.48/38,403.84 = 15,252.48/x
  3. Step 3: Cross multiply
    27,828.48x = 38,403.84 × 15,252.48
  4. Step 4: Simplify right side
    27,828.48x = 585,753,801.52
  5. Step 5: Solve for x
    x = 585,753,801.52/27,828.48
  6. Step 6: Final answer
    x = 21,048.72

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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.