Home / 27,679.54-38,186.13-19,300.90

Finding the Fourth Proportional to 27,679.54, 38,186.13 and 19,300.90

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Solution

The fourth proportional to 27,679.54, 38,186.13 and 19,300.90 is: 26,627.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,679.54 : 38,186.13 = 19,300.90 : x
  2. Step 2: Convert to fraction form
    27,679.54/38,186.13 = 19,300.90/x
  3. Step 3: Cross multiply
    27,679.54x = 38,186.13 × 19,300.90
  4. Step 4: Simplify right side
    27,679.54x = 737,026,676.52
  5. Step 5: Solve for x
    x = 737,026,676.52/27,679.54
  6. Step 6: Final answer
    x = 26,627.13

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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.