Home / 20,926.73-28,845.65-16,442.78

Finding the Fourth Proportional to 20,926.73, 28,845.65 and 16,442.78

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Solution

The fourth proportional to 20,926.73, 28,845.65 and 16,442.78 is: 22,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.73 : 28,845.65 = 16,442.78 : x
  2. Step 2: Convert to fraction form
    20,926.73/28,845.65 = 16,442.78/x
  3. Step 3: Cross multiply
    20,926.73x = 28,845.65 × 16,442.78
  4. Step 4: Simplify right side
    20,926.73x = 474,302,573.79
  5. Step 5: Solve for x
    x = 474,302,573.79/20,926.73
  6. Step 6: Final answer
    x = 22,664.91

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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.