Home / 28,820.36-43,238.89-11,950.23

Finding the Fourth Proportional to 28,820.36, 43,238.89 and 11,950.23

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Solution

The fourth proportional to 28,820.36, 43,238.89 and 11,950.23 is: 17,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.36 : 43,238.89 = 11,950.23 : x
  2. Step 2: Convert to fraction form
    28,820.36/43,238.89 = 11,950.23/x
  3. Step 3: Cross multiply
    28,820.36x = 43,238.89 × 11,950.23
  4. Step 4: Simplify right side
    28,820.36x = 516,714,823.92
  5. Step 5: Solve for x
    x = 516,714,823.92/28,820.36
  6. Step 6: Final answer
    x = 17,928.81

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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.