Home / 20,252.40-27,961.32-12,709.08

Finding the Fourth Proportional to 20,252.40, 27,961.32 and 12,709.08

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Solution

The fourth proportional to 20,252.40, 27,961.32 and 12,709.08 is: 17,546.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.40 : 27,961.32 = 12,709.08 : x
  2. Step 2: Convert to fraction form
    20,252.40/27,961.32 = 12,709.08/x
  3. Step 3: Cross multiply
    20,252.40x = 27,961.32 × 12,709.08
  4. Step 4: Simplify right side
    20,252.40x = 355,362,652.79
  5. Step 5: Solve for x
    x = 355,362,652.79/20,252.40
  6. Step 6: Final answer
    x = 17,546.69

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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.