Home / 20,059.54-27,674.73-12,989.86

Finding the Fourth Proportional to 20,059.54, 27,674.73 and 12,989.86

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Solution

The fourth proportional to 20,059.54, 27,674.73 and 12,989.86 is: 17,921.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.54 : 27,674.73 = 12,989.86 : x
  2. Step 2: Convert to fraction form
    20,059.54/27,674.73 = 12,989.86/x
  3. Step 3: Cross multiply
    20,059.54x = 27,674.73 × 12,989.86
  4. Step 4: Simplify right side
    20,059.54x = 359,490,868.24
  5. Step 5: Solve for x
    x = 359,490,868.24/20,059.54
  6. Step 6: Final answer
    x = 17,921.19

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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.