Home / 22,222.56-30,666.24-12,792.72

Finding the Fourth Proportional to 22,222.56, 30,666.24 and 12,792.72

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Solution

The fourth proportional to 22,222.56, 30,666.24 and 12,792.72 is: 17,653.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,222.56 : 30,666.24 = 12,792.72 : x
  2. Step 2: Convert to fraction form
    22,222.56/30,666.24 = 12,792.72/x
  3. Step 3: Cross multiply
    22,222.56x = 30,666.24 × 12,792.72
  4. Step 4: Simplify right side
    22,222.56x = 392,304,621.77
  5. Step 5: Solve for x
    x = 392,304,621.77/22,222.56
  6. Step 6: Final answer
    x = 17,653.44

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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.