Home / 39,233.35-54,141.38-21,328.80

Finding the Fourth Proportional to 39,233.35, 54,141.38 and 21,328.80

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Solution

The fourth proportional to 39,233.35, 54,141.38 and 21,328.80 is: 29,433.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,233.35 : 54,141.38 = 21,328.80 : x
  2. Step 2: Convert to fraction form
    39,233.35/54,141.38 = 21,328.80/x
  3. Step 3: Cross multiply
    39,233.35x = 54,141.38 × 21,328.80
  4. Step 4: Simplify right side
    39,233.35x = 1,154,770,288.39
  5. Step 5: Solve for x
    x = 1,154,770,288.39/39,233.35
  6. Step 6: Final answer
    x = 29,433.39

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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.