Home / 21,021.41-31,526.74-6,226.87

Finding the Fourth Proportional to 21,021.41, 31,526.74 and 6,226.87

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Solution

The fourth proportional to 21,021.41, 31,526.74 and 6,226.87 is: 9,338.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021.41 : 31,526.74 = 6,226.87 : x
  2. Step 2: Convert to fraction form
    21,021.41/31,526.74 = 6,226.87/x
  3. Step 3: Cross multiply
    21,021.41x = 31,526.74 × 6,226.87
  4. Step 4: Simplify right side
    21,021.41x = 196,312,817.12
  5. Step 5: Solve for x
    x = 196,312,817.12/21,021.41
  6. Step 6: Final answer
    x = 9,338.71

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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.