Home / 20,187.14-30,280.32-9,086.00

Finding the Fourth Proportional to 20,187.14, 30,280.32 and 9,086.00

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Solution

The fourth proportional to 20,187.14, 30,280.32 and 9,086.00 is: 13,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.14 : 30,280.32 = 9,086.00 : x
  2. Step 2: Convert to fraction form
    20,187.14/30,280.32 = 9,086.00/x
  3. Step 3: Cross multiply
    20,187.14x = 30,280.32 × 9,086.00
  4. Step 4: Simplify right side
    20,187.14x = 275,126,836.12
  5. Step 5: Solve for x
    x = 275,126,836.12/20,187.14
  6. Step 6: Final answer
    x = 13,628.82

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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.