Home / 39,956.40-55,150.20-29,381.04

Finding the Fourth Proportional to 39,956.40, 55,150.20 and 29,381.04

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Solution

The fourth proportional to 39,956.40, 55,150.20 and 29,381.04 is: 40,553.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,956.40 : 55,150.20 = 29,381.04 : x
  2. Step 2: Convert to fraction form
    39,956.40/55,150.20 = 29,381.04/x
  3. Step 3: Cross multiply
    39,956.40x = 55,150.20 × 29,381.04
  4. Step 4: Simplify right side
    39,956.40x = 1,620,370,232.21
  5. Step 5: Solve for x
    x = 1,620,370,232.21/39,956.40
  6. Step 6: Final answer
    x = 40,553.46

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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.