Home / 28,851.54-39,815.28-16,105.92

Finding the Fourth Proportional to 28,851.54, 39,815.28 and 16,105.92

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Solution

The fourth proportional to 28,851.54, 39,815.28 and 16,105.92 is: 22,226.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851.54 : 39,815.28 = 16,105.92 : x
  2. Step 2: Convert to fraction form
    28,851.54/39,815.28 = 16,105.92/x
  3. Step 3: Cross multiply
    28,851.54x = 39,815.28 × 16,105.92
  4. Step 4: Simplify right side
    28,851.54x = 641,261,714.46
  5. Step 5: Solve for x
    x = 641,261,714.46/28,851.54
  6. Step 6: Final answer
    x = 22,226.26

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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.