Home / 20,926.44-28,882.58-12,972.24

Finding the Fourth Proportional to 20,926.44, 28,882.58 and 12,972.24

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Solution

The fourth proportional to 20,926.44, 28,882.58 and 12,972.24 is: 17,904.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.44 : 28,882.58 = 12,972.24 : x
  2. Step 2: Convert to fraction form
    20,926.44/28,882.58 = 12,972.24/x
  3. Step 3: Cross multiply
    20,926.44x = 28,882.58 × 12,972.24
  4. Step 4: Simplify right side
    20,926.44x = 374,671,694.72
  5. Step 5: Solve for x
    x = 374,671,694.72/20,926.44
  6. Step 6: Final answer
    x = 17,904.23

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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.