Home / 27,704.88-38,232.54-15,129.63

Finding the Fourth Proportional to 27,704.88, 38,232.54 and 15,129.63

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Solution

The fourth proportional to 27,704.88, 38,232.54 and 15,129.63 is: 20,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,704.88 : 38,232.54 = 15,129.63 : x
  2. Step 2: Convert to fraction form
    27,704.88/38,232.54 = 15,129.63/x
  3. Step 3: Cross multiply
    27,704.88x = 38,232.54 × 15,129.63
  4. Step 4: Simplify right side
    27,704.88x = 578,444,184.16
  5. Step 5: Solve for x
    x = 578,444,184.16/27,704.88
  6. Step 6: Final answer
    x = 20,878.78

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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.