Home / 27,783.36-38,341.94-15,208.11

Finding the Fourth Proportional to 27,783.36, 38,341.94 and 15,208.11

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Solution

The fourth proportional to 27,783.36, 38,341.94 and 15,208.11 is: 20,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.36 : 38,341.94 = 15,208.11 : x
  2. Step 2: Convert to fraction form
    27,783.36/38,341.94 = 15,208.11/x
  3. Step 3: Cross multiply
    27,783.36x = 38,341.94 × 15,208.11
  4. Step 4: Simplify right side
    27,783.36x = 583,108,365.09
  5. Step 5: Solve for x
    x = 583,108,365.09/27,783.36
  6. Step 6: Final answer
    x = 20,987.68

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Half scale
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Double scale
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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.