Home / 28,800.54-43,200.82-18,983.64

Finding the Fourth Proportional to 28,800.54, 43,200.82 and 18,983.64

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Solution

The fourth proportional to 28,800.54, 43,200.82 and 18,983.64 is: 28,475.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.54 : 43,200.82 = 18,983.64 : x
  2. Step 2: Convert to fraction form
    28,800.54/43,200.82 = 18,983.64/x
  3. Step 3: Cross multiply
    28,800.54x = 43,200.82 × 18,983.64
  4. Step 4: Simplify right side
    28,800.54x = 820,108,814.58
  5. Step 5: Solve for x
    x = 820,108,814.58/28,800.54
  6. Step 6: Final answer
    x = 28,475.47

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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.