Home / 27,687.66-38,203.86-15,750.30

Finding the Fourth Proportional to 27,687.66, 38,203.86 and 15,750.30

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Solution

The fourth proportional to 27,687.66, 38,203.86 and 15,750.30 is: 21,732.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,687.66 : 38,203.86 = 15,750.30 : x
  2. Step 2: Convert to fraction form
    27,687.66/38,203.86 = 15,750.30/x
  3. Step 3: Cross multiply
    27,687.66x = 38,203.86 × 15,750.30
  4. Step 4: Simplify right side
    27,687.66x = 601,722,256.16
  5. Step 5: Solve for x
    x = 601,722,256.16/27,687.66
  6. Step 6: Final answer
    x = 21,732.51

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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.