Home / 39,433.68-54,418.76-21,529.04

Finding the Fourth Proportional to 39,433.68, 54,418.76 and 21,529.04

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Solution

The fourth proportional to 39,433.68, 54,418.76 and 21,529.04 is: 29,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,433.68 : 54,418.76 = 21,529.04 : x
  2. Step 2: Convert to fraction form
    39,433.68/54,418.76 = 21,529.04/x
  3. Step 3: Cross multiply
    39,433.68x = 54,418.76 × 21,529.04
  4. Step 4: Simplify right side
    39,433.68x = 1,171,583,660.79
  5. Step 5: Solve for x
    x = 1,171,583,660.79/39,433.68
  6. Step 6: Final answer
    x = 29,710.23

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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.