Home / 28,785.39-43,178.09-16,464.75

Finding the Fourth Proportional to 28,785.39, 43,178.09 and 16,464.75

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Solution

The fourth proportional to 28,785.39, 43,178.09 and 16,464.75 is: 24,697.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.39 : 43,178.09 = 16,464.75 : x
  2. Step 2: Convert to fraction form
    28,785.39/43,178.09 = 16,464.75/x
  3. Step 3: Cross multiply
    28,785.39x = 43,178.09 × 16,464.75
  4. Step 4: Simplify right side
    28,785.39x = 710,916,375.00
  5. Step 5: Solve for x
    x = 710,916,375.00/28,785.39
  6. Step 6: Final answer
    x = 24,697.13

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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.