Home / 43,923.45-65,922.13-18,982.40

Finding the Fourth Proportional to 43,923.45, 65,922.13 and 18,982.40

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Solution

The fourth proportional to 43,923.45, 65,922.13 and 18,982.40 is: 28,489.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,923.45 : 65,922.13 = 18,982.40 : x
  2. Step 2: Convert to fraction form
    43,923.45/65,922.13 = 18,982.40/x
  3. Step 3: Cross multiply
    43,923.45x = 65,922.13 × 18,982.40
  4. Step 4: Simplify right side
    43,923.45x = 1,251,360,240.51
  5. Step 5: Solve for x
    x = 1,251,360,240.51/43,923.45
  6. Step 6: Final answer
    x = 28,489.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.