Home / 22,407.12-33,447.78-20,558.16

Finding the Fourth Proportional to 22,407.12, 33,447.78 and 20,558.16

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Solution

The fourth proportional to 22,407.12, 33,447.78 and 20,558.16 is: 30,687.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,407.12 : 33,447.78 = 20,558.16 : x
  2. Step 2: Convert to fraction form
    22,407.12/33,447.78 = 20,558.16/x
  3. Step 3: Cross multiply
    22,407.12x = 33,447.78 × 20,558.16
  4. Step 4: Simplify right side
    22,407.12x = 687,624,812.88
  5. Step 5: Solve for x
    x = 687,624,812.88/22,407.12
  6. Step 6: Final answer
    x = 30,687.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.