Home / 22,785.90-31,443.46-16,815.39

Finding the Fourth Proportional to 22,785.90, 31,443.46 and 16,815.39

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Solution

The fourth proportional to 22,785.90, 31,443.46 and 16,815.39 is: 23,204.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,785.90 : 31,443.46 = 16,815.39 : x
  2. Step 2: Convert to fraction form
    22,785.90/31,443.46 = 16,815.39/x
  3. Step 3: Cross multiply
    22,785.90x = 31,443.46 × 16,815.39
  4. Step 4: Simplify right side
    22,785.90x = 528,734,042.85
  5. Step 5: Solve for x
    x = 528,734,042.85/22,785.90
  6. Step 6: Final answer
    x = 23,204.44

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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.