Home / 21,311.73-31,988.25-10,226.07

Finding the Fourth Proportional to 21,311.73, 31,988.25 and 10,226.07

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Solution

The fourth proportional to 21,311.73, 31,988.25 and 10,226.07 is: 15,349.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,311.73 : 31,988.25 = 10,226.07 : x
  2. Step 2: Convert to fraction form
    21,311.73/31,988.25 = 10,226.07/x
  3. Step 3: Cross multiply
    21,311.73x = 31,988.25 × 10,226.07
  4. Step 4: Simplify right side
    21,311.73x = 327,114,083.68
  5. Step 5: Solve for x
    x = 327,114,083.68/21,311.73
  6. Step 6: Final answer
    x = 15,349.02

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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.