Home / 28,875.68-43,321.20-9,154.64

Finding the Fourth Proportional to 28,875.68, 43,321.20 and 9,154.64

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Solution

The fourth proportional to 28,875.68, 43,321.20 and 9,154.64 is: 13,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.68 : 43,321.20 = 9,154.64 : x
  2. Step 2: Convert to fraction form
    28,875.68/43,321.20 = 9,154.64/x
  3. Step 3: Cross multiply
    28,875.68x = 43,321.20 × 9,154.64
  4. Step 4: Simplify right side
    28,875.68x = 396,589,990.37
  5. Step 5: Solve for x
    x = 396,589,990.37/28,875.68
  6. Step 6: Final answer
    x = 13,734.39

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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.