Home / 38,630.56-57,983.28-18,654.13

Finding the Fourth Proportional to 38,630.56, 57,983.28 and 18,654.13

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Solution

The fourth proportional to 38,630.56, 57,983.28 and 18,654.13 is: 27,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,630.56 : 57,983.28 = 18,654.13 : x
  2. Step 2: Convert to fraction form
    38,630.56/57,983.28 = 18,654.13/x
  3. Step 3: Cross multiply
    38,630.56x = 57,983.28 × 18,654.13
  4. Step 4: Simplify right side
    38,630.56x = 1,081,627,642.95
  5. Step 5: Solve for x
    x = 1,081,627,642.95/38,630.56
  6. Step 6: Final answer
    x = 27,999.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.