Home / 28,712.85-39,614.58-17,378.73

Finding the Fourth Proportional to 28,712.85, 39,614.58 and 17,378.73

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Solution

The fourth proportional to 28,712.85, 39,614.58 and 17,378.73 is: 23,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.85 : 39,614.58 = 17,378.73 : x
  2. Step 2: Convert to fraction form
    28,712.85/39,614.58 = 17,378.73/x
  3. Step 3: Cross multiply
    28,712.85x = 39,614.58 × 17,378.73
  4. Step 4: Simplify right side
    28,712.85x = 688,451,089.88
  5. Step 5: Solve for x
    x = 688,451,089.88/28,712.85
  6. Step 6: Final answer
    x = 23,977.11

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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.