Home / 43,728.24-65,536.16-18,761.92

Finding the Fourth Proportional to 43,728.24, 65,536.16 and 18,761.92

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Solution

The fourth proportional to 43,728.24, 65,536.16 and 18,761.92 is: 28,118.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,728.24 : 65,536.16 = 18,761.92 : x
  2. Step 2: Convert to fraction form
    43,728.24/65,536.16 = 18,761.92/x
  3. Step 3: Cross multiply
    43,728.24x = 65,536.16 × 18,761.92
  4. Step 4: Simplify right side
    43,728.24x = 1,229,584,191.03
  5. Step 5: Solve for x
    x = 1,229,584,191.03/43,728.24
  6. Step 6: Final answer
    x = 28,118.77

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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.