Home / 22,208.05-30,647.07-12,776.62

Finding the Fourth Proportional to 22,208.05, 30,647.07 and 12,776.62

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Solution

The fourth proportional to 22,208.05, 30,647.07 and 12,776.62 is: 17,631.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,208.05 : 30,647.07 = 12,776.62 : x
  2. Step 2: Convert to fraction form
    22,208.05/30,647.07 = 12,776.62/x
  3. Step 3: Cross multiply
    22,208.05x = 30,647.07 × 12,776.62
  4. Step 4: Simplify right side
    22,208.05x = 391,565,967.50
  5. Step 5: Solve for x
    x = 391,565,967.50/22,208.05
  6. Step 6: Final answer
    x = 17,631.71

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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.