Home / 28,180.08-42,285.60-9,465.84

Finding the Fourth Proportional to 28,180.08, 42,285.60 and 9,465.84

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Solution

The fourth proportional to 28,180.08, 42,285.60 and 9,465.84 is: 14,203.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.08 : 42,285.60 = 9,465.84 : x
  2. Step 2: Convert to fraction form
    28,180.08/42,285.60 = 9,465.84/x
  3. Step 3: Cross multiply
    28,180.08x = 42,285.60 × 9,465.84
  4. Step 4: Simplify right side
    28,180.08x = 400,268,723.90
  5. Step 5: Solve for x
    x = 400,268,723.90/28,180.08
  6. Step 6: Final answer
    x = 14,203.96

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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.