Home / 20,825.58-28,735.95-11,873.10

Finding the Fourth Proportional to 20,825.58, 28,735.95 and 11,873.10

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Solution

The fourth proportional to 20,825.58, 28,735.95 and 11,873.10 is: 16,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,825.58 : 28,735.95 = 11,873.10 : x
  2. Step 2: Convert to fraction form
    20,825.58/28,735.95 = 11,873.10/x
  3. Step 3: Cross multiply
    20,825.58x = 28,735.95 × 11,873.10
  4. Step 4: Simplify right side
    20,825.58x = 341,184,807.95
  5. Step 5: Solve for x
    x = 341,184,807.95/20,825.58
  6. Step 6: Final answer
    x = 16,382.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.