Home / 43,728.08-65,585.57-12,134.81

Finding the Fourth Proportional to 43,728.08, 65,585.57 and 12,134.81

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Solution

The fourth proportional to 43,728.08, 65,585.57 and 12,134.81 is: 18,200.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,728.08 : 65,585.57 = 12,134.81 : x
  2. Step 2: Convert to fraction form
    43,728.08/65,585.57 = 12,134.81/x
  3. Step 3: Cross multiply
    43,728.08x = 65,585.57 × 12,134.81
  4. Step 4: Simplify right side
    43,728.08x = 795,868,133.10
  5. Step 5: Solve for x
    x = 795,868,133.10/43,728.08
  6. Step 6: Final answer
    x = 18,200.39

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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.