Home / 20,274.24-27,979.11-11,323.98

Finding the Fourth Proportional to 20,274.24, 27,979.11 and 11,323.98

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Solution

The fourth proportional to 20,274.24, 27,979.11 and 11,323.98 is: 15,627.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.24 : 27,979.11 = 11,323.98 : x
  2. Step 2: Convert to fraction form
    20,274.24/27,979.11 = 11,323.98/x
  3. Step 3: Cross multiply
    20,274.24x = 27,979.11 × 11,323.98
  4. Step 4: Simplify right side
    20,274.24x = 316,834,882.06
  5. Step 5: Solve for x
    x = 316,834,882.06/20,274.24
  6. Step 6: Final answer
    x = 15,627.46

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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.