Home / 19,632.88-27,091.36-12,079.68

Finding the Fourth Proportional to 19,632.88, 27,091.36 and 12,079.68

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Solution

The fourth proportional to 19,632.88, 27,091.36 and 12,079.68 is: 16,668.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,632.88 : 27,091.36 = 12,079.68 : x
  2. Step 2: Convert to fraction form
    19,632.88/27,091.36 = 12,079.68/x
  3. Step 3: Cross multiply
    19,632.88x = 27,091.36 × 12,079.68
  4. Step 4: Simplify right side
    19,632.88x = 327,254,959.56
  5. Step 5: Solve for x
    x = 327,254,959.56/19,632.88
  6. Step 6: Final answer
    x = 16,668.72

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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.