Home / 22,908.83-31,632.22-20,661.68

Finding the Fourth Proportional to 22,908.83, 31,632.22 and 20,661.68

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Solution

The fourth proportional to 22,908.83, 31,632.22 and 20,661.68 is: 28,529.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,908.83 : 31,632.22 = 20,661.68 : x
  2. Step 2: Convert to fraction form
    22,908.83/31,632.22 = 20,661.68/x
  3. Step 3: Cross multiply
    22,908.83x = 31,632.22 × 20,661.68
  4. Step 4: Simplify right side
    22,908.83x = 653,574,912.24
  5. Step 5: Solve for x
    x = 653,574,912.24/22,908.83
  6. Step 6: Final answer
    x = 28,529.39

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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.