Home / 28,759.68-43,142.76-12,116.64

Finding the Fourth Proportional to 28,759.68, 43,142.76 and 12,116.64

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Solution

The fourth proportional to 28,759.68, 43,142.76 and 12,116.64 is: 18,176.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.68 : 43,142.76 = 12,116.64 : x
  2. Step 2: Convert to fraction form
    28,759.68/43,142.76 = 12,116.64/x
  3. Step 3: Cross multiply
    28,759.68x = 43,142.76 × 12,116.64
  4. Step 4: Simplify right side
    28,759.68x = 522,745,291.53
  5. Step 5: Solve for x
    x = 522,745,291.53/28,759.68
  6. Step 6: Final answer
    x = 18,176.33

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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.