Home / 20,182.52-30,273.11-10,840.78

Finding the Fourth Proportional to 20,182.52, 30,273.11 and 10,840.78

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Solution

The fourth proportional to 20,182.52, 30,273.11 and 10,840.78 is: 16,260.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.52 : 30,273.11 = 10,840.78 : x
  2. Step 2: Convert to fraction form
    20,182.52/30,273.11 = 10,840.78/x
  3. Step 3: Cross multiply
    20,182.52x = 30,273.11 × 10,840.78
  4. Step 4: Simplify right side
    20,182.52x = 328,184,125.43
  5. Step 5: Solve for x
    x = 328,184,125.43/20,182.52
  6. Step 6: Final answer
    x = 16,260.81

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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.