Home / 39,471.57-54,471.83-21,567.33

Finding the Fourth Proportional to 39,471.57, 54,471.83 and 21,567.33

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Solution

The fourth proportional to 39,471.57, 54,471.83 and 21,567.33 is: 29,763.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,471.57 : 54,471.83 = 21,567.33 : x
  2. Step 2: Convert to fraction form
    39,471.57/54,471.83 = 21,567.33/x
  3. Step 3: Cross multiply
    39,471.57x = 54,471.83 × 21,567.33
  4. Step 4: Simplify right side
    39,471.57x = 1,174,811,825.48
  5. Step 5: Solve for x
    x = 1,174,811,825.48/39,471.57
  6. Step 6: Final answer
    x = 29,763.49

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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.