Home / 27,619.56-38,115.06-15,044.40

Finding the Fourth Proportional to 27,619.56, 38,115.06 and 15,044.40

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Solution

The fourth proportional to 27,619.56, 38,115.06 and 15,044.40 is: 20,761.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,619.56 : 38,115.06 = 15,044.40 : x
  2. Step 2: Convert to fraction form
    27,619.56/38,115.06 = 15,044.40/x
  3. Step 3: Cross multiply
    27,619.56x = 38,115.06 × 15,044.40
  4. Step 4: Simplify right side
    27,619.56x = 573,418,208.66
  5. Step 5: Solve for x
    x = 573,418,208.66/27,619.56
  6. Step 6: Final answer
    x = 20,761.31

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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.