Home / 20,729.60-31,059.84-14,562.56

Finding the Fourth Proportional to 20,729.60, 31,059.84 and 14,562.56

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Solution

The fourth proportional to 20,729.60, 31,059.84 and 14,562.56 is: 21,819.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.60 : 31,059.84 = 14,562.56 : x
  2. Step 2: Convert to fraction form
    20,729.60/31,059.84 = 14,562.56/x
  3. Step 3: Cross multiply
    20,729.60x = 31,059.84 × 14,562.56
  4. Step 4: Simplify right side
    20,729.60x = 452,310,783.59
  5. Step 5: Solve for x
    x = 452,310,783.59/20,729.60
  6. Step 6: Final answer
    x = 21,819.56

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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.