Home / 22,276.81-30,738.09-12,712.33

Finding the Fourth Proportional to 22,276.81, 30,738.09 and 12,712.33

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Solution

The fourth proportional to 22,276.81, 30,738.09 and 12,712.33 is: 17,540.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,276.81 : 30,738.09 = 12,712.33 : x
  2. Step 2: Convert to fraction form
    22,276.81/30,738.09 = 12,712.33/x
  3. Step 3: Cross multiply
    22,276.81x = 30,738.09 × 12,712.33
  4. Step 4: Simplify right side
    22,276.81x = 390,752,526.40
  5. Step 5: Solve for x
    x = 390,752,526.40/22,276.81
  6. Step 6: Final answer
    x = 17,540.78

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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.