Home / 20,926.88-28,850.88-17,929.76

Finding the Fourth Proportional to 20,926.88, 28,850.88 and 17,929.76

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Solution

The fourth proportional to 20,926.88, 28,850.88 and 17,929.76 is: 24,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.88 : 28,850.88 = 17,929.76 : x
  2. Step 2: Convert to fraction form
    20,926.88/28,850.88 = 17,929.76/x
  3. Step 3: Cross multiply
    20,926.88x = 28,850.88 × 17,929.76
  4. Step 4: Simplify right side
    20,926.88x = 517,289,354.19
  5. Step 5: Solve for x
    x = 517,289,354.19/20,926.88
  6. Step 6: Final answer
    x = 24,718.90

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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.