Home / 39,469.78-54,472.06-21,567.50

Finding the Fourth Proportional to 39,469.78, 54,472.06 and 21,567.50

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Solution

The fourth proportional to 39,469.78, 54,472.06 and 21,567.50 is: 29,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,469.78 : 54,472.06 = 21,567.50 : x
  2. Step 2: Convert to fraction form
    39,469.78/54,472.06 = 21,567.50/x
  3. Step 3: Cross multiply
    39,469.78x = 54,472.06 × 21,567.50
  4. Step 4: Simplify right side
    39,469.78x = 1,174,826,112.92
  5. Step 5: Solve for x
    x = 1,174,826,112.92/39,469.78
  6. Step 6: Final answer
    x = 29,765.20

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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.