Home / 20,926.13-31,393.82-6,890.48

Finding the Fourth Proportional to 20,926.13, 31,393.82 and 6,890.48

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Solution

The fourth proportional to 20,926.13, 31,393.82 and 6,890.48 is: 10,337.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.13 : 31,393.82 = 6,890.48 : x
  2. Step 2: Convert to fraction form
    20,926.13/31,393.82 = 6,890.48/x
  3. Step 3: Cross multiply
    20,926.13x = 31,393.82 × 6,890.48
  4. Step 4: Simplify right side
    20,926.13x = 216,318,297.41
  5. Step 5: Solve for x
    x = 216,318,297.41/20,926.13
  6. Step 6: Final answer
    x = 10,337.24

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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.