Home / 20,025.86-27,631.69-11,071.63

Finding the Fourth Proportional to 20,025.86, 27,631.69 and 11,071.63

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Solution

The fourth proportional to 20,025.86, 27,631.69 and 11,071.63 is: 15,276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.86 : 27,631.69 = 11,071.63 : x
  2. Step 2: Convert to fraction form
    20,025.86/27,631.69 = 11,071.63/x
  3. Step 3: Cross multiply
    20,025.86x = 27,631.69 × 11,071.63
  4. Step 4: Simplify right side
    20,025.86x = 305,927,847.95
  5. Step 5: Solve for x
    x = 305,927,847.95/20,025.86
  6. Step 6: Final answer
    x = 15,276.64

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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.