Home / 28,180.20-42,268.85-9,460.38

Finding the Fourth Proportional to 28,180.20, 42,268.85 and 9,460.38

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Solution

The fourth proportional to 28,180.20, 42,268.85 and 9,460.38 is: 14,190.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.20 : 42,268.85 = 9,460.38 : x
  2. Step 2: Convert to fraction form
    28,180.20/42,268.85 = 9,460.38/x
  3. Step 3: Cross multiply
    28,180.20x = 42,268.85 × 9,460.38
  4. Step 4: Simplify right side
    28,180.20x = 399,879,383.16
  5. Step 5: Solve for x
    x = 399,879,383.16/28,180.20
  6. Step 6: Final answer
    x = 14,190.08

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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.