Home / 20,698.20-31,067.90-9,607.40

Finding the Fourth Proportional to 20,698.20, 31,067.90 and 9,607.40

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Solution

The fourth proportional to 20,698.20, 31,067.90 and 9,607.40 is: 14,420.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.20 : 31,067.90 = 9,607.40 : x
  2. Step 2: Convert to fraction form
    20,698.20/31,067.90 = 9,607.40/x
  3. Step 3: Cross multiply
    20,698.20x = 31,067.90 × 9,607.40
  4. Step 4: Simplify right side
    20,698.20x = 298,481,742.46
  5. Step 5: Solve for x
    x = 298,481,742.46/20,698.20
  6. Step 6: Final answer
    x = 14,420.66

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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.