Home / 28,919.37-43,385.60-10,200.78

Finding the Fourth Proportional to 28,919.37, 43,385.60 and 10,200.78

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Solution

The fourth proportional to 28,919.37, 43,385.60 and 10,200.78 is: 15,303.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,919.37 : 43,385.60 = 10,200.78 : x
  2. Step 2: Convert to fraction form
    28,919.37/43,385.60 = 10,200.78/x
  3. Step 3: Cross multiply
    28,919.37x = 43,385.60 × 10,200.78
  4. Step 4: Simplify right side
    28,919.37x = 442,566,960.77
  5. Step 5: Solve for x
    x = 442,566,960.77/28,919.37
  6. Step 6: Final answer
    x = 15,303.48

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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.