Home / 22,228.92-30,666-14,665.56

Finding the Fourth Proportional to 22,228.92, 30,666 and 14,665.56

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Solution

The fourth proportional to 22,228.92, 30,666 and 14,665.56 is: 20,231.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.92 : 30,666 = 14,665.56 : x
  2. Step 2: Convert to fraction form
    22,228.92/30,666 = 14,665.56/x
  3. Step 3: Cross multiply
    22,228.92x = 30,666 × 14,665.56
  4. Step 4: Simplify right side
    22,228.92x = 449,734,062.96
  5. Step 5: Solve for x
    x = 449,734,062.96/22,228.92
  6. Step 6: Final answer
    x = 20,231.93

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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.