Home / 22,783.57-31,442.07-13,222.73

Finding the Fourth Proportional to 22,783.57, 31,442.07 and 13,222.73

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Solution

The fourth proportional to 22,783.57, 31,442.07 and 13,222.73 is: 18,247.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,783.57 : 31,442.07 = 13,222.73 : x
  2. Step 2: Convert to fraction form
    22,783.57/31,442.07 = 13,222.73/x
  3. Step 3: Cross multiply
    22,783.57x = 31,442.07 × 13,222.73
  4. Step 4: Simplify right side
    22,783.57x = 415,750,130.44
  5. Step 5: Solve for x
    x = 415,750,130.44/22,783.57
  6. Step 6: Final answer
    x = 18,247.81

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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.