Home / 20,765.52-28,660.50-14,474.34

Finding the Fourth Proportional to 20,765.52, 28,660.50 and 14,474.34

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Solution

The fourth proportional to 20,765.52, 28,660.50 and 14,474.34 is: 19,977.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,765.52 : 28,660.50 = 14,474.34 : x
  2. Step 2: Convert to fraction form
    20,765.52/28,660.50 = 14,474.34/x
  3. Step 3: Cross multiply
    20,765.52x = 28,660.50 × 14,474.34
  4. Step 4: Simplify right side
    20,765.52x = 414,841,821.57
  5. Step 5: Solve for x
    x = 414,841,821.57/20,765.52
  6. Step 6: Final answer
    x = 19,977.43

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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.