Home / 22,207.80-30,647.10-13,260.54

Finding the Fourth Proportional to 22,207.80, 30,647.10 and 13,260.54

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Solution

The fourth proportional to 22,207.80, 30,647.10 and 13,260.54 is: 18,299.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.80 : 30,647.10 = 13,260.54 : x
  2. Step 2: Convert to fraction form
    22,207.80/30,647.10 = 13,260.54/x
  3. Step 3: Cross multiply
    22,207.80x = 30,647.10 × 13,260.54
  4. Step 4: Simplify right side
    22,207.80x = 406,397,095.43
  5. Step 5: Solve for x
    x = 406,397,095.43/22,207.80
  6. Step 6: Final answer
    x = 18,299.75

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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.