Home / 43,500.16-65,241.28-18,880.64

Finding the Fourth Proportional to 43,500.16, 65,241.28 and 18,880.64

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Solution

The fourth proportional to 43,500.16, 65,241.28 and 18,880.64 is: 28,317.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,500.16 : 65,241.28 = 18,880.64 : x
  2. Step 2: Convert to fraction form
    43,500.16/65,241.28 = 18,880.64/x
  3. Step 3: Cross multiply
    43,500.16x = 65,241.28 × 18,880.64
  4. Step 4: Simplify right side
    43,500.16x = 1,231,797,120.82
  5. Step 5: Solve for x
    x = 1,231,797,120.82/43,500.16
  6. Step 6: Final answer
    x = 28,317.07

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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.