Home / 22,478.49-31,004.24-15,765.62

Finding the Fourth Proportional to 22,478.49, 31,004.24 and 15,765.62

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Solution

The fourth proportional to 22,478.49, 31,004.24 and 15,765.62 is: 21,745.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,478.49 : 31,004.24 = 15,765.62 : x
  2. Step 2: Convert to fraction form
    22,478.49/31,004.24 = 15,765.62/x
  3. Step 3: Cross multiply
    22,478.49x = 31,004.24 × 15,765.62
  4. Step 4: Simplify right side
    22,478.49x = 488,800,832.38
  5. Step 5: Solve for x
    x = 488,800,832.38/22,478.49
  6. Step 6: Final answer
    x = 21,745.27

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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.